Fact-checked by Grok 2 weeks ago

Penile sheath

A penile sheath, also known as the prepuce in anatomical contexts, is a protective fold of skin that envelops the distal portion of the penis in most mammals during its non-erect state, serving to shield the organ from external damage and maintain hygiene through natural secretions.^[1] In veterinary anatomy, particularly in species like bulls and horses, the sheath is a voluminous structure supported by elastic ligaments and muscles, such as the retractor preputii, which facilitate retraction and extension during mating.^[2] Beyond biology, the term also denotes traditional cultural artifacts, such as the koteka worn by indigenous men in Papua New Guinea's highland tribes (e.g., Dani and Yali), crafted from dried gourds and secured with vines to cover the penis as a form of attire symbolizing masculinity, identity, and social status.^[3] Additionally, in modern medicine, a penile sheath refers to an external urinary collection device, resembling a condom catheter, that fits over the penis to manage incontinence by draining urine into a leg bag, offering a non-invasive alternative to indwelling catheters for suitable male patients.^[4] The anatomical penile sheath varies across mammalian species but consistently functions to protect the sensitive glans penis and regulate moisture via glandular secretions like smegma, which can accumulate and require periodic cleaning to prevent infections such as balanoposthitis.^[1] In herbivores like cattle, the sheath houses the penis in a sigmoid flexure for efficient storage, with the structure expanding during erection to enable insemination, while in carnivores like dogs, it includes lymphoid tissues for immune defense.^[2] Pathologies affecting the sheath, including phimosis (inability to protrude the penis) or paraphimosis (inability to retract it), can impair reproductive function and necessitate veterinary intervention.^[1] Culturally, penile sheaths have been documented in various indigenous societies, with the Papua New Guinean koteka representing a key example of body modification and adornment; boys typically begin wearing them around age 10-15 as part of initiation rites, and the sheaths' size and decoration evolve with life stages, from practical short forms for labor to elaborate ceremonial versions.^[3] These artifacts embody social hierarchies and resistance to colonial influences, as seen in the 1970s Indonesian "Operation Koteka" campaign to replace them with Western clothing, which instead reinforced their role as symbols of cultural autonomy. Similar practices exist among Amazonian groups like the Iskonawa, using sheaths made from materials such as deer bone for protection and status display.^[5] In clinical settings, penile sheaths as medical devices are recommended for men with mild to moderate urinary incontinence post-prostatectomy or due to neurological conditions, featuring self-adhesive or double-sided tape options for secure fit without skin irritation when properly sized (typically 23-45 mm diameters).^[4] They connect to drainage systems for discreet management, reducing risks associated with internal catheters like infections, but require daily hygiene to prevent complications such as allergic reactions or penile strangulation from overtightening.^[6] Overall, the multifaceted nature of penile sheaths highlights their roles in biology, tradition, and healthcare innovation.

Anatomy

Definition and structure

The penile sheath is a protective covering for the penis in male mammals, consisting of skin that envelops the distal portion and glans penis when non-erect; in many contexts, it is synonymous with the prepuce, the inner mucosal fold, though in species like horses and cattle, the sheath refers to the broader external structure housing the prepuce.^[7]^[1]^[8] During erection, the prepuce or inner sheath retracts proximally to expose the glans. This structure is characteristic of male mammals and facilitates the penis's mobility while maintaining its integrity in the flaccid condition. Structurally, the penile sheath consists of an outer layer of keratinized stratified squamous epithelium continuous with the penile skin, providing durability against external contact, and an inner mucosal layer of non-keratinized or variably keratinized squamous epithelium that interfaces directly with the glans.^[9]^[10] In some mammalian species, such as swine and cattle, the sheath attaches to the ventral aspect of the penis via a frenulum, a band of connective tissue that anchors it and aids in retraction.^[11] Embryologically, the penile sheath originates from the genital tubercle, a primordial structure that differentiates under androgen influence during fetal development in mammals.^[12] Physiologically, the sheath protects the glans from mechanical abrasion, desiccation, and pathogenic infection by enclosing it in a moist environment, while preputial glands embedded within the sheath secrete lubricating substances, such as sebum-like material, to reduce friction during movement and erection.^[7]^[13] These functions are essential for maintaining penile health across mammalian species.^[14]

Occurrence in mammals

The penile sheath, also known as the prepuce, is a highly conserved anatomical feature found in the vast majority of mammalian species, serving primarily to enclose and protect the non-erect penis. It is present across all major mammalian clades, including monotremes such as the platypus (Ornithorhynchus anatinus) and short-beaked echidna (Tachyglossus aculeatus), where the penis retracts into a preputial sheath located near the cloaca. In marsupials and placentals, the structure similarly houses the penis, preventing desiccation, abrasion, and injury during locomotion or environmental exposure. This near-universality underscores its evolutionary persistence, with the sheath likely originating early in mammalian history as an adaptation for terrestrial and semi-aquatic lifestyles.^[15] In marine mammals, particularly cetaceans like whales and dolphins, the penile sheath is modified for aquatic environments, with the fibroelastic penis coiled within a protective preputial cavity or slit ventral to the body when not extended. This internal configuration facilitates hydrodynamic efficiency while maintaining the sheath's protective function, allowing the penis to protrude rapidly during copulation via specialized retractor muscles. Unlike the more external sheaths in terrestrial species, this adaptation reflects evolutionary pressures for streamlined body forms in fully aquatic lineages.^[16]^[17] Representative examples illustrate the sheath's prevalence across mammalian orders. In herbivores such as horses (Equus caballus), the sheath is prominently external and pendulous, forming a loose fold of skin that fully encases the elongated penis, aiding in its protection during grazing and movement. Carnivores like dogs (Canis lupus familiaris) exhibit a retractable sheath that conceals the penis except during urination or mating, with the structure supported by retractor muscles for quick deployment. Among primates, chimpanzees (Pan troglodytes) possess a mobile prepuce that covers the glans, enabling flexibility in social and reproductive behaviors. These variations highlight the sheath's adaptability while maintaining its core protective role.^[18]^[19]^[20] Evolutionarily, the penile sheath is conserved due to its essential function in safeguarding sensitive erectile tissue, with modifications often correlating to mating strategies; for instance, species engaging in prolonged intromission, such as certain ungulates, may feature more robust sheaths to accommodate extended exposure without damage. This conservation is evident in comparative anatomical studies, where the prepuce's basic histology—comprising stratified squamous epithelium and glandular elements—remains consistent across taxa, supporting hygiene and lubrication.^[21] Pathological conditions associated with the penile sheath, such as phimosis (inability to extrude the penis due to a constricted preputial orifice) and paraphimosis (failure to retract the penis, leading to swelling and ischemia), are documented in sheathed mammals including dogs, horses, cats, and ferrets. These disorders can be congenital, traumatic, or inflammatory, uniquely affecting species with this anatomy and often requiring veterinary intervention to prevent complications like tissue necrosis.^[22]^[23]

Variations across species

Penile sheaths exhibit significant structural variations across mammal species, reflecting adaptations to diverse reproductive strategies and environments. In equids such as horses, the sheath is prominently external, forming a visible pendulous structure that encloses the non-erect penis and facilitates its extension during urination and mating.^[24] In contrast, rodents often feature fibroelastic penile structures within more internalized sheaths, where the elastic tissues provide rigidity without relying heavily on vascular engorgement, aiding quick copulations in competitive settings.^[24] Additionally, some carnivores like cats possess keratinized spines or barbs on the penile glans, which emerge from the sheath during erection and enhance stimulation of the female reproductive tract to induce ovulation.^[25] Size and mobility of the penile sheath also vary markedly, correlating with body size and locomotor demands. Large herbivores such as elephants have elongated sheaths that accommodate their pendulous, prehensile penises, which can extend up to 1 meter when erect, allowing for precise insertion despite the animal's massive body and terrestrial-aquatic transitions in ancestral environments.^[26] Conversely, small mammals like mice possess short, tight sheaths that closely envelop the compact penis, minimizing exposure and supporting rapid, agile movements in confined habitats.^[27] Glandular features within the sheath differ between dietary groups, influencing hygiene and lubrication. Herbivores, including equids, produce substantial smegma—a mixture of desquamated cells, sebum, and moisture—within the sheath, which accumulates as waxy deposits requiring periodic grooming to prevent irritation.^[28] In primates, the prepuce contains sebaceous glands that contribute to lubrication, though accumulation is managed through grooming behaviors in social species.^[20] These variations often tie into behavioral adaptations for reproductive success. In cats, the spines facilitate intense stimulation, triggering ovulation in induced ovulators and potentially displacing rival sperm.^[25]

Medical applications

Urinary incontinence devices

Penile sheaths function as external collection devices specifically designed for managing male urinary incontinence by containing urine leakage at the source, which helps prevent perineal skin irritation, odor, and associated discomfort while preserving the user's dignity and independence in daily activities.^[29] These devices fit over the penis like a sheath connected to a drainage bag, allowing for discreet containment without internal instrumentation.^[30] The historical development of penile sheaths traces back to adaptations of condom designs in the mid-20th century, initially used for temporary urinary management in medical settings such as post-surgical care.^[31] By the early 1980s, commercially available versions emerged, marking a shift toward standardized products for long-term use.^[32] A significant milestone occurred in the 1980s with the introduction of silicone materials, which addressed common allergic reactions to latex and improved overall tolerability and skin compatibility.^[33] Indications for penile sheaths primarily include moderate to severe urinary incontinence following prostatectomy, where up to 16% of men experience persistent leakage post-surgery.^[34] They are also suitable for neurological conditions, such as spinal cord injuries leading to neurogenic bladder dysfunction and reflex incontinence, as well as age-related issues in older adults with weakened pelvic floor muscles.^[35] Effective fitting depends on the anatomical structure of the penis to ensure a secure, non-constrictive seal.^[30] Compared to indwelling catheters, penile sheaths offer a non-invasive alternative that substantially reduces the risk of urinary tract infections, with studies showing lower incidence rates due to the absence of urethral insertion. A 2024 meta-analysis confirmed significantly lower UTI incidence with male external catheters compared to indwelling ones.^[36]^[37] This approach minimizes complications like catheter-associated bacteriuria, which is acquired at a rate of 3-10% per day in indwelling catheter users, while supporting mobility and quality of life.^[38]^[35]

Design and functionality

Medical penile sheaths, also known as external condom catheters, consist of a soft, flexible sleeve typically made from silicone or latex, which envelops the penis to facilitate urine collection without invasive insertion.^[30] The core components include an adhesive lining—either integrated or applied separately—for secure attachment, a drainage tube extending from the sheath tip, and an anti-reflux valve integrated into the drainage system to prevent urine backflow and reduce infection risk.^[30]^[39] These elements work together to create a non-invasive conduit that directs urine away from the body while maintaining skin integrity.^[4] Sizing and fit are critical for effective use, with standard diameters ranging from 25 mm to 40 mm to accommodate varying penile girths, measured at the widest shaft circumference.^[30]^[39] Lengths typically span 15-20 cm, though shorter options exist for retracted penises, ensuring a snug yet comfortable fit that minimizes slippage.^[30] Self-adhering types feature a hypoallergenic adhesive coating on the inner surface for direct application, while double-sided tape variants require manual placement of adhesive strips for attachment, allowing customization based on skin sensitivity or penile retraction.^[4]^[39] In operation, the sheath channels urine through the drainage tube into a connected leg bag (typically 200-900 mL capacity) for daytime mobility or a larger bedside drainage bag (1.5-2 L) for nighttime use, promoting discreet management of incontinence.^[30] Breathable materials like silicone help minimize moisture buildup and skin irritation by allowing air circulation, while anti-kinking features in the tubing ensure uninterrupted flow.^[39]^[4] Recent innovations enhance usability and safety, including one-piece designs such as the Ugo Sheath, which integrates a self-adhesive silicone sleeve with a stepped connector for easy attachment to drainage systems.^[40] Antimicrobial coatings on select models reduce bacterial adhesion, and adjustable tension rings at the base provide customizable retention to prevent dislodgement without compromising comfort.^[30] These advancements prioritize patient comfort and lower complication rates compared to traditional indwelling catheters.^[4]

Usage and care

To apply a penile sheath, begin by washing the hands and penis thoroughly with mild soap and water, then dry the area gently to ensure a secure fit. Select the appropriate size by measuring the penis circumference at the base, typically in increments of 5-10 mm from 20-40 mm, to avoid slippage or constriction. For self-adhesive sheaths, roll the device onto the penis like a condom, leaving about 1 cm of space at the tip to prevent irritation, and hold in place for 10-20 seconds to activate the adhesive; non-adhesive types require a skin-safe glue or tape for securing. Connect the sheath's drainage tube to a leg bag, positioning the bag below the knee to facilitate gravity drainage, and trim excess pubic hair if needed for better adhesion without shaving.^[4]^[41]^[39] Daily care involves changing the sheath every 24 hours, or sooner if it becomes soiled or loose, to minimize infection risk and skin breakdown. Monitor the skin around the penis daily for signs of irritation, such as redness, blisters, or soreness, and empty the drainage bag when it is two-thirds full—typically every 2-3 hours—to prevent backflow; rinse the bag with warm water daily and replace it weekly. For uncircumcised men, retract the foreskin during cleaning but return it to its natural position before application, allowing 30 minutes for drying; avoid oils, creams, or talcum powder, which can compromise adhesion. Additionally, watch for slippage, allergic reactions like rashes from latex (opting for silicone alternatives if sensitive), and ensure the bag connections are kink-free during use.^[42]^[4]^[39] Common complications include penile retraction, where the penis withdraws into the sheath, addressed by selecting shorter sheath lengths or using supportive holders; infections, prevented through strict hygiene protocols like handwashing and timely changes; and torque or twisting during fitting, which can cause skin trauma and should be avoided by unrolling the sheath smoothly without pulling. Skin ulceration from pressure or moisture stagnation may occur with ill-fitting devices, requiring immediate removal and consultation; urinary tract infections are less common than with indwelling catheters but can arise from poor maintenance.^[42]^[4]^[41] Patient education emphasizes following manufacturer fitting guides and resources from healthcare providers, such as those from the NHS or Cleveland Clinic, which include visual aids for sizing and application. Troubleshooting involves checking for leaks or falls by inspecting fit and adhesion, with solutions like re-trimming hair or switching adhesives; users should consult a healthcare professional if persistent issues arise, such as unexplained pain, fever, blood in urine, or skin damage, to adjust the device or explore alternatives. Regular follow-up ensures safe, effective use, promoting independence while minimizing risks.^[42]^[4]^[39]

Cultural significance

Traditional uses in indigenous societies

In indigenous societies of Papua New Guinea's highlands, the koteka, or penis gourd, serves as a traditional garment worn by men of tribes such as the Dani and Yali to cover and protect the genitals. Among the Dani, it is typically adopted by boys upon reaching adolescence, marking their transition to manhood and integration into adult social roles within patrilineal clan structures.^[43] The Yali people, residing in the mountainous regions of Indonesian Papua, similarly employ the koteka as everyday attire, emphasizing its role in maintaining cultural identity amid environmental challenges.^[44] Similar practices appear in other regions, though less prevalent. In Amazonian indigenous groups like the Kayapó of Brazil, penile sheaths symbolize the communal harnessing of male reproductive power for broader social continuity, often integrated into body adornment traditions.^[45] Similar plant-based penile sheaths are used by Amazonian groups like the Iskonawa for protection and status, though their use is declining due to globalization.^[5] In parts of Africa, such as among the Nasarawa tribes (including Mama, Mada, Ninzam, and Nungu) in what is now Nigeria, men use calabash-based sheaths as status markers, with elaborate designs denoting importance within semi-Bantu linguistic communities.^[46] For daily wear, the koteka provides practical protection against environmental hazards like plants and insects in Papua's rugged terrain, while also functioning as a convenient pouch for small items such as tobacco or currency.^[47] Ceremonially, it takes on symbolic weight; men adorn it with shells, fibers, or pig tusks during tribal festivals and rituals, such as the Goroka or Madang Shows, to assert identity, intimidate rivals, or participate in communal events that reinforce social bonds.^[47] The use of penile sheaths has declined since the 20th century due to modernization, missionary influences, and urbanization, with only older generations in remote Dani villages continuing the practice regularly by 2019.^[48] However, cultural resurgence efforts emerged around 2018–2019, when Papuan university students in Jayapura began wearing koteka to campuses as a protest against cultural erasure and to reclaim indigenous pride amid discrimination.^[49] As of 2024–2025, the koteka continues to be worn in cultural festivals, tourism contexts, and public demonstrations as a symbol of cultural resistance and identity.^[50]^[51]^[52]

Materials and construction

Traditional penile sheaths, particularly the koteka worn by indigenous men in Papua New Guinea, are primarily constructed from dried gourds of the species Lagenaria siceraria (commonly known as bottle gourds), which are cultivated specifically for this purpose due to their hard, durable shells that can be shaped into a protective covering.^[53]^[3] Other common materials include plant fibers such as those derived from Gnetum gnemon vines, used for weaving and tying, as well as variations incorporating coconut shells (Cocos nucifera), bamboo (Bambusa sp.), wood from local trees, and decorative shells like pig teeth or Coix seeds.^[53] Construction begins with selecting and preparing the gourd, which is hollowed out and dried, often molded into the desired shape using stone weights and strings to ensure a close fit over the penis while allowing for ventilation.^[53] The base is typically wrapped and secured with fiber strings or belts made from Gnetum gnemon to suspend the sheath comfortably around the waist or chest, preventing slippage during movement.^[53]^[3] Decorative elements are added post-construction, including natural pigments from Bixa orellana for coloration, feathers for adornment, clay, or ashes to enhance aesthetic appeal and tribal distinction.^[53] Regional variations reflect available local resources and cultural preferences; in the highlands of Papua, gourd-based koteka predominate with fiber-wrapped bases for everyday use, while in the Sepik River region, bamboo sheaths—cut open at the back and incised with linear designs painted for decoration—are more common, sometimes serving ceremonial roles alongside coconut shell alternatives.^[53]^[54] Leaf materials, such as those from Cordyline terminalis, may be incorporated for temporary or decorative wraps in certain lowland groups.^[53] Durability is achieved through the inherent hardness of materials like gourd shells and bamboo, which resist wear from daily activities, with sheaths often customized in size by manipulating gourd growth or selecting appropriately aged specimens to suit the wearer's age, status, and comfort.^[3]^[53] In many indigenous societies of Papua New Guinea, such as the Dani, the koteka serves as a key symbolic marker of manhood and tribal identity, with larger or more elaborate sheaths denoting maturity and social standing among adult males.^[43] Among the Kayapo of Brazil, the penis sheath similarly symbolizes the transition to adulthood at puberty, signifying certification for sexual relations and the collective channeling of male reproductive powers toward social reproduction rather than individual expression.^[45] These adornments reinforce personal and communal identity, often distinguished by tribal-specific shapes, sizes, and decorations that visually signal affiliation and status. Socially, penile sheaths function to promote equality in attire within minimalistic societies, serving as the standard male covering in place of other garments and fostering a uniform appearance among initiated men.^[45] Practically, they double as storage for small items like cigarettes, money, or tobacco in some Papua New Guinean groups, adapting to everyday needs while maintaining cultural form.^[53] Exclusive to males, these sheaths play central roles in gender-specific rituals, including initiation ceremonies where boys receive their first sheath to mark entry into manhood, as seen in Dani practices starting around ages 3 to 15.^[43] They also feature in conflict displays, such as during the 1970s Operasi Koteka protests in Papua, where men wore only sheaths to assert cultural resistance against modernization efforts.^[43] In modern anthropology, penile sheaths are often termed "phallocrypts," emphasizing their role in concealing and symbolically managing male sexuality, as analyzed in comparative studies of body adornment.^[53] Their influence extends to tourism, where traditional wear sustains cultural practices in highland Papua New Guinea, and to art, with artifacts featured in exhibitions like those at the Smithsonian Institution showcasing Damal and Amungmei examples.^[43]^[55]

References

[1]
Prepuce - an overview | ScienceDirect Topics
The prepuce, or sheath, is a voluminous, folded sleeve of integument covering the mobile portion of the quiescent penis.
[2]
Reproductive Anatomy and Physiology of the Bull - MU Extension
The sigmoid flexure is an anatomical structure that provides a means by which the penis is held inside the sheath except during time of service. Strong ...
[3]
[PDF] Exploring the Penis Sheath of Papua New Guinea
To begin, I will explain what a penis sheath is, how it is constructed, and introduce you to cultural, political and social ideologies that are connected with ...
[4]
Condom Catheter for Incontinence: Application, Use & Care
Condom catheters are a type of external catheter that helps manage urinary incontinence. They fit over your penis like a condom and connect to a collection ...Overview · Procedure Details · Additional Common Questions
[5]
Collection Profile: On Iskonawa Cultural Diversity - Spurlock Museum
Apr 5, 2023 · Penis Sheath 2000.01.0304. Conclusion. The artifacts in this collection represent a great diversity of knowledge. Knowledge of the local ...
[6]
Penile urinary sheaths: a continence management system for men
May 1, 2024 · Penile sheaths are a good way of managing urinary leakage if an individual is suitable for sheaths. This article will explore this suitability.Missing: medical | Show results with:medical
[7]
Prepuce of Animals - Vetscraft
The prepuce of animals, also known as the sheath, is a tubular fold of skin that covers the cranial free portion of the penis in its non-erect state.
[8]
Penis Anatomy: Gross Anatomy, Vasculature, Lymphatics and Nerve ...
Mar 18, 2025 · The paired corpora cavernosa contain erectile tissue and are each surrounded by the tunica albuginea, a dense fibrous sheath of connective ...
[9]
Development of the human prepuce and its innervation - PMC
Its outer surface is continuous with skin of the penile shaft and is covered by a glabrous stratified squamous keratinized epithelium. Its inner mucosal ...<|control11|><|separator|>
[10]
Frenulum - an overview | ScienceDirect Topics
The frenulum is a piece of tissue that holds the penis to the inside of the prepuce. It usually atrophies in domestic male swine between 4 and 6 months of age.
[11]
Differences in Formation of Prepuce and Urethral Groove During ...
The mammalian penis develops from the bisexual precursor called the genital tubercle (GT) under the influence of androgens [1,2,3,4]. Compared with mice and ...
[12]
PREPUTIAL GLANDS IN ARTIODACTYLA - Oxford Academic
Undoubtedly, the secretory product provides a lubricating property be- tween the penis and the wall of the prepu- tial canal. Sweat glands would have no ...
[13]
Prepuce - an overview | ScienceDirect Topics
The prepuce is a specialized junctional mucocutaneous tissue that provides adequate skin and mucosa to cover the entire penis during erection.
[14]
The Unique Penile Morphology of the Short-Beaked Echidna ...
Apr 29, 2021 · In adult males, the penis is retracted into the preputial sheath, which lies closely apposed to the ventral body wall, just above the opening of ...
[15]
Genital interactions during simulated copulation among marine ...
Oct 11, 2017 · Secondly, we examined the potential depth of penile penetration into the vagina, as it is unclear whether and how the penis navigates through ...
[16]
The Reproductive System
The penis of the dolphin originates from the rear pelvic bones and from the pelvic region, the penis extends to the penis slit, just to the back of the ...
[17]
https://www.schoolnet.org.za/PILAfrica/en/webs/17963/reproductive-system.html
[18]
A Dog's Penis: Everything You Need to Know | PetMD
Nov 29, 2023 · Most of the time, what you see on the outside of a dog's penis is the prepuce or sheath—the skin and other tissues that surround the non-erect ...
[19]
Anatomy and histology of the penile and clitoral prepuce in primates
The comparative anatomy between human and non-human primates will be reviewed with a specific focus on the sensory innervation of the prepuce and glans.
[20]
Advances in understanding of mammalian penile evolution, human ...
These newfound insights into penile tunical, venous anatomy and erection physiology were inspired by and, in turn, enhance clinical applications.
[21]
Paraphimosis in Dogs and Cats - Reproductive System
Paraphimosis is the inability to completely reduce the penis into the preputial cavity. Paraphimosis most commonly occurs in dogs after manual semen collection.Missing: phimosis | Show results with:phimosis
[22]
Phimosis and paraphimosis in two ferrets (Mustela putorius furo)
Cases of paraphimosis are rarely described in ferrets. Phimosis has not been reported in the ferret. Two castrated ferrets with abnormalities of the prepuce ...
[23]
[PDF] Genitalic Traits of Mammals
May 4, 2010 · A penis is present and delivers semen in all mammals, but penile anatomy varies greatly. The penis of marsupials and placental mammals.
[24]
Spines Along the Feline Penis - Wiley Online Library
Jul 3, 2019 · These so-called penile spines are thought to stimulate the queen's reproductive tract. Because the queen is an induced ovulator, vaginal stimulation is ...
[25]
Penis-Erection - ElephantVoices
Penis-Erection. A flaccid elephant penis is normally sheathed between the hind legs. As the penis starts to engorge it may partially extrude, still flaccid.
[26]
Anatomy of the mouse penis and internal prepuce - PMC - NIH
Sep 30, 2020 · The mouse internal prepuce is integral to the glans penis and clearly is involved in sexual function in so far as it contains a major erectile body innervated ...Missing: sheath | Show results with:sheath
[27]
[PDF] Sheath cleaning | WestVETS Animal Hospital
This is what we call 'smegma', and it is a build up of dead skins cells, dirt, urine, and normal secretions from sebaceous and sweat glands.Missing: herbivores | Show results with:herbivores
[28]
Genital interactions during simulated copulation among marine ...
Oct 11, 2017 · This study improves our understanding of how mechanical interactions during copulation influence the shape of genitalia and affect fertility.
[29]
Continence aids in the management of urinary incontinence
Jan 5, 2012 · Penile sheaths are useful for men with moderate to severe urinary incontinence. · Sheaths can be 'single piece' with an in-built adhesive ...Missing: advantages | Show results with:advantages
[30]
[PDF] Male external catheters in adults - EAUN
Some men who cannot benefit from active treatment of urinary incontinence may benefit from the use of a male external catheter (MEC). Recognising that few ...
[31]
A historical perspective and evolution of the treatment of male ...
Oct 20, 2017 · Full Access. A historical perspective and evolution of the treatment of male urinary incontinence. Julio T. Chong,. Corresponding Author. Julio ...
[32]
Male urinary incontinence and the urinary sheath - ResearchGate
Sep 12, 2025 · Urinary sheaths (also referred to as male external catheters, condom catheters or penile sheaths) have been available from the early 1980s ...
[33]
External Collection Devices as an Alternative to the Indwelling ...
A single-use condom catheter is available that adheres to the penile shaft via an internal ring that is inflated with air to enable urinary containment. ... Most ...
[34]
External Collection Devices as an Alternative to the Indwelling ...
These indications include long-term drainage in men with neurogenic bladder dysfunction and reflex urinary incontinence, short-term drainage in men who ...Missing: advantages | Show results with:advantages
[35]
External Collection Devices as an Alternative to the Indwelling ... - NIH
May 13, 2016 · Multiple evidence-based guidelines have suggested clinicians consider external collection devices (ECD) as alternatives to indwelling catheters.
[36]
Male External Catheters and Urinary Tract Infections - NIH
Aug 17, 2025 · While recent systematic evidence underscores the advantages of FEC in preventing UTI, the effectiveness of their male counterparts remains ...
[37]
Penile Sheaths | Bladder & Bowel Community
Incontinence Sheaths are available in various lengths and sizes. Most companies supply them with diameters in the range of about 20-40mm (in 5-10mm increments).Missing: components | Show results with:components
[38]
Ugo Sheath - penile sheath for male urinary incontinence
Our Ugo Sheath has been carefully developed with user comfort in mind. Offering a choice of standard and pop on sheaths in sizes from 25mm up to 40mm.Missing: antimicrobial | Show results with:antimicrobial
[39]
What's a Condom Catheter? - WebMD
May 30, 2025 · A condom catheter is a pee collection device worn on your penis like a condom. It has a tube connected to a collection bag that's strapped to your leg.Missing: components | Show results with:components
[40]
[PDF] Using Urinary Sheaths | NHS Western Isles
Remove the sheath in the shower or bath. • Alternatively use warm soapy flannel to wash around the sheath prior to removal. • Never remove dry. • Gently unroll ...
[41]
"Clothing or Decoration: Exploring the Penis Sheath of Papua New ...
The goal of this paper is to show the importance of the penis sheath and its effect on the culture and tradition of Papua New Guinea. By comparing this ...Missing: anthropology | Show results with:anthropology
[42]
Is Beauty in the Eye of the Beholder but Ugliness Culturally ...
... traditional clothing (some wear only a koteka, which is a traditional wooden penis sheath). The Yali cultivate plots, hunt as well as breed pigs (which ...
[43]
The social skin | HAU: Journal of Ethnographic Theory: Vol 2, No 2
The penis sheath, then, symbolises the collective appropriation of male powers of sexual reproduction for the purposes of social reproduction. To the Kayapo, ...
[44]
The penis-sheath, the Basenji and Bezoar - Sabinet African Journals
All the tribes who wear the sheath belong linguistically to the. Semi·Bantu group. M. Delafosse has noticed that in the French Sudan those who wear the penis- ...Missing: indigenous | Show results with:indigenous<|separator|>
[45]
ethnobotany of penis sheathes (phallocrypts) in papua new guinea
A phallocrypt traditionally worn by male inhabitants of New Guinea to cover and protect their penis. Interestingly, the penis sheath also acts as a purse to ...<|separator|>
[46]
Lecturer in Papua Talks about Shrinking Number of Koteka Wearers
Jul 15, 2019 · “Yes, [the koteka] is only worn by the older generations from Dani Tribe. That too could only be seen at rural villages distant from cities. The ...
[47]
Papuan students start wearing 'koteka' to school - The Jakarta Post
Jun 4, 2018 · A. number of university students in Jayapura have begun to wear the traditional Papuan koteka (penis gourd) to campus, as reported by tempo.co.
[48]
ethnobotany of penis sheathes (phallocrypts) in papua new guinea
Cultural shows feature penis sheathes that cater to modern modesty standards and tourist preferences. Gourds from New Guinea align more with those from America ...
[49]
Bamboo penis sheath | Science Museum Group Collection
Bamboo penis sheath, cut out at back, decorated with incised and painted linear design, from Dutch New Guinea, 1871-1920
[50]
Gourd Penis Sheath "Koteka" | Smithsonian Institution
Dec 2, 2014 · Culture. Damal, Amungmei ; Object Type. Penis Sheath ; Place. Tembagapura, Irian Jaya (Western New Guinea/Papua), Indonesia, Melanesia ; See more ...