Labium majus

Labium majus is a part of the female external genitalia, specifically a component of the vulva. It is one of the two larger outer folds of skin, the other being the labium minus. The labia majora (plural of labium majus) are homologous to the male scrotum.

Anatomy

The labia majora are two prominent longitudinal cutaneous folds that extend downward and backward from the mons pubis to the perineum. They form the lateral boundaries of the vulval vestibule. The labia majora contain sweat and sebaceous glands, which produce lubricating secretions.

Function

The primary function of the labia majora is to protect the inner structures of the vulva. They contain numerous sweat and oil-secreting glands, which help maintain lubrication. The labia majora also play a role in sexual arousal, as they become engorged with blood during sexual stimulation.

Clinical significance

Conditions that can affect the labia majora include Bartholin's cyst, labial fusion, and vulvar cancer. Treatment for these conditions varies depending on the specific condition and its severity.

See also

• Labium minus
• Clitoris
• Vulva
• Vaginal opening