Hairy Nipple

Brown and white photograph of a nipple with hair

The nipple-areolar complex (NAC)—an important anatomical structure—is the pigmented area in the most prominent part of the breast. Within this region, there are sweat glands, sebaceous glands, Montgomery tubercles, hair follicles, and smooth muscle. This region also includes many sensory nerve endings and can be considered an erogenous zone for many people. The NAC’s dimension, texture, and color can vary greatly across ethnic groups and individuals.