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Smegma, a transliteration of the Greek word σμήγμα for sebum, is a combination of exfoliated (shed) epithelial cells, transudated skin oils, and moisture, and can accumulate under the foreskin of males and within the vulva of females. It has a characteristic strong odor. Smegma is common to all mammals, male and female. Mycobacterium smegmatis is the characteristic bacterium involved in smegma production, and is generally thought to form smegma from epidermal secretions.
In healthy animals, smegma helps clean and lubricate the genitals. In veterinary medicine, analysis of this smegma is sometimes used for detection of urinary infections, such as trichomoniasis. Some have recommended periodic cleaning of male genitals to improve the health of the animal
Both males and females produce smegma. In males smegma is produced and accumulates under the foreskin of uncircumcised individuals; in females it collects around the clitoris and in the folds of the labia minora.
Smegma is noticeable as a smooth or moist texture until it is allowed to accumulate, when it takes on its characteristic texture and appearance described in many texts as "cheesy". Because smegma tends to accumulate under the foreskin in males, its presence is less common and less noticeable in circumcised males.
The subpreputial moisture keeps the glans moist and may lubricate the movement of the foreskin. However, if allowed to accumulate and decay in the foreskin cavity it can provide an ideal medium for potentially pathogenic bacteria to colonize;current medical opinion is that allowing smegma to accumulate freely is unhealthy. Accumulation of smegma can cause or aggravate a variety of irritations known as balanitis. Early medical studies such as those by Plaut (1947) and Heins et al (1958) claimed that smegma accumulation led to the development of penile cancer, but the American Cancer Society states that more recent studies have failed to support this.
Preventing accumulation is best done by rinsing the area with warm water. In females, the hood of the clitoris can be gently pulled back to wash away accumulated smegma. Some argue that soap is best avoided because it depletes natural skin oils and may cause non-specific dermatitis. Noticeably unpleasant cheese-like odors can be an indicator of a potentially serious medical problem, or a need to gently wash away excess with water. Deodorant sprays or washes may cause thrush or thrush-like conditions — washing using warm water only is recommended by health professionals if you have senitive skin, or suffer from dermatitis reactions to using soap like products.
Smegma has become part of a campaign being waged by a small but vocalanti-circumcision movement, with the movement citing the potential usefulness of smegma, which is generally lost following circumcision. Medical opinion is split on the whether this may be true or not.
The term is one of the few English words referring to aspects of human genitalia that is of Greek and not Latin origin.
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· 1 decade ago