The nipple is a raised region of tissue on the surface of the breast from which, in lactating females, milk from the mammary gland leaves the body through the lactiferous ducts to nurse an infant. [1][2] the … Usually, the size of the nipple is in proportion to the size of the breast, but large nipples may be found on small breasts and vice versa.

Explore the anatomy of the nipple with a detailed diagram. Learn about its various parts, functions, and how they relate to the body's overall physiology.