Smegma

Smegma clitoridis is defined as the secretion of the apocrine (sweat) and sebaceous (sebum) glands of the clitoris in combination with desquamating epithelial cells.

[3][4][5][6] In males, smegma helps keep the glans moist and facilitates sexual intercourse by acting as a lubricant.

[7] Parkash et al. found that smegma contains 26.6% fats and 13.3% proteins, which they judged to be consistent with necrotic epithelial debris.

It is thought to be rich in squalene[11] and contain prostatic and seminal secretions, desquamated epithelial cells, and the mucin content of the urethral glands of Littré.

[14] The production of smegma, which increases during puberty, can only be of limited significance, as males and females learn to practice good genital hygiene.