Apocrine Glands: Functions, Differences from Eccrine Glands, and Implications in Disease

Apocrine glands are a type of sweat gland found in the skin, particularly in the axillae (armpits) and genital area. They produce a milky secretion that is released into the skin during puberty and adolescence. The secretion from apocrine glands is thought to play a role in scent marking and pheromone production.

Apocrine glands are different from eccrine glands, which are the more common type of sweat gland found throughout the body. Eccrine glands produce a clear, watery secretion that helps regulate body temperature. Apocrine glands, on the other hand, produce a thick, milky secretion that is rich in proteins and lipids.

Apocrine glands are also known as "scent glands" because they produce a substance that gives the skin a distinctive odor. This odor can be more pronounced in certain areas of the body, such as the armpits and genital area, where the glands are most active.

In addition to their role in scent marking and pheromone production, apocrine glands have been implicated in the development and progression of certain diseases, such as breast cancer and skin cancer. The glands are also a common site of infection and inflammation, particularly in the axillae and genital area.