Preputial glands are

exocrine gland Exocrine glands are glands that secrete substances onto an epithelial surface by way of a duct. Examples of exocrine glands include sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, prostate and mucous. Exocrine glands are one of ...

s in the

prepuce Prepuce , or as an adjective, preputial , refers to two homologous structures of male and female genitals: *Foreskin, skin surrounding and protecting the head of the penis in humans *Penile sheath, skin surrounding and protecting the head of the ...

in front of the penis. They occur in many

mammals A mammal () is a vertebrate animal of the class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three middle e ...

, including

canids Canidae (; from Latin, ''canis'', "dog") is a biological family of caniform carnivorans, constituting a clade. A member of this family is also called a canid (). The family includes three subfamilies: the Caninae, and the extinct Borophaginae ...

mice A mouse (: mice) is a small rodent. Characteristically, mice are known to have a pointed snout, small rounded ears, a body-length scaly tail, and a high breeding rate. The best known mouse species is the common house mouse (''Mus musculus' ...

ferret The ferret (''Mustela furo'') is a small, domesticated species belonging to the family Mustelidae. The ferret is most likely a domesticated form of the wild European polecat (''Mustela putorius''), as evidenced by the ferret's ability to inter ...

rhinoceros A rhinoceros ( ; ; ; : rhinoceros or rhinoceroses), commonly abbreviated to rhino, is a member of any of the five extant taxon, extant species (or numerous extinct species) of odd-toed ungulates (perissodactyls) in the family (biology), famil ...

es, and

even-toed ungulate Artiodactyls are placental mammals belonging to the order Artiodactyla ( , ). Typically, they are ungulates which bear weight equally on two (an even number) of their five toes (the third and fourth, often in the form of a hoof). The other t ...

s and produce

pheromone A pheromone () is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to affect the behavio ...

s. The preputial glands of female animals are sometimes called clitoral glands. Male

canid Canidae (; from Latin, ''canis'', "dog") is a family (biology), biological family of caniform carnivorans, constituting a clade. A member of this family is also called a canid (). The family includes three subfamily, subfamilies: the Caninae, a ...

s scent-mark their territories with urine and preputial gland secretions. The preputial glands of male musk deer produce strong-smelling

deer musk Deer musk is a substance with a persistent odor, obtained from the caudal glands of the male musk deer. Although more commonly referred to as " musk", the term itself is often used to describe a wide variety of "musky" substances from other anim ...

which is of economic importance, as it is used in

perfume Perfume (, ) is a mixture of fragrance, fragrant essential oils or aroma compounds (fragrances), Fixative (perfumery), fixatives and solvents, usually in liquid form, used to give the human body, animals, food, objects, and living-spaces an agre ...

Human homologues

There is debate about whether humans have functional homologues to preputial glands. Preputial glands were first noted by

Edward Tyson Edward Tyson (20 January 1651 – 1 August 1708) was an English scientist and physician. He is commonly regarded as the founder of modern comparative anatomy, which compares the anatomy between species. Biography Tyson was born the son of Edward ...

and in 1694, fully described by

William Cowper William Cowper ( ; – 25 April 1800) was an English poet and Anglican hymnwriter. One of the most popular poets of his time, Cowper changed the direction of 18th-century nature poetry by writing of everyday life and scenes of the Engli ...

who named them Tyson's glands after Tyson. They are modified

sebaceous gland A sebaceous gland or oil gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum, which lubricates the hair and skin of mammals. In humans, sebaceous glands occur in ...

s located around the

corona Corona (from the Latin for 'crown') most commonly refers to: * Stellar corona, the outer atmosphere of the Sun or another star * Corona (beer), a Mexican beer * Corona, informal term for the coronavirus or disease responsible for the COVID-19 ...

and inner surface of the

of the

human penis In Human body, human anatomy, the penis (; : penises or penes; from the Latin ''pēnis'', initially 'tail') is an external sex organ (intromittent organ) through which males urination, urinate and ejaculation, ejaculate, as Penis, on other anim ...

. They are believed to be most frequently found in the balanopreputial sulcus. Their secretion may be one of the components of

smegma Smegma (from Ancient Greek ) is shed skin cells, skin oils, and moisture that occurs in male and female mammalian genitalia. In males, smegma collects under the foreskin; in females, it collects around the clitoris and in the folds of the lab ...

. Some, including Satya Parkash, dispute their existence. While humans may not have true anatomical equivalents, the term may sometimes be used for tiny whitish yellow bumps occasionally found on the glans corona. The proper name for these structures is

pearly penile papules Pearly penile papules (PPP; also known as hirsutoid papillomas or as , Latin for 'papillae of the corona of the glans') are benign, small bumps or spots on the human penis. They vary in size from 0.5-1 mm, are pearly or flesh-colored, smo ...

(or hirsutoid papillomas). According to detractors, they are not glands, but mere thickenings of the skin and are not involved in the formation of smegma.

References

{{Authority control Sexual anatomy Glands

Human homologues

See also

References