Why Do Guys Have Nipples Wikipedia. Your hormones can have a lot to do with the darkening or lightening of your nipples and areolae. No, huh uh, no way, i'm sorry, not gonna happen.
The scientific reason why some humans have 4 (or more) nipples. That’s because the navel and genitals have a common tissue origin. The human areola is the pigmented area on the breast around the nipple.
Areola, more generally, is a small circular area on the body with a different histology from the surrounding tissue, or other small circular areas such as an inflamed region of skin.
Male mammals of many species have been observed to lactate under unusual or pathogenic conditions such as extreme stress, castration and exposure to phytoestrogens, or pituitary tumors. He said all you need is to write them a song. Piercings and surgery can convert “innie” nipples to “outies.” Areola, more generally, is a small circular area on the body with a different histology from the surrounding tissue, or other small circular areas such as an inflamed region of skin.