Polythelia

When more than two nipples grow on a body, the condition is known medically as polythelia. Extra nipples typically form along the milk lines, which run from the upper torso to the groin area. Cases have been recorded in which supernumerary nipples appear elsewhere on the body, though. Other places they may occur include the thighs, face, and neck.Regardless of where these abnormalities pop up, they are physically harmless. Underdeveloped nipples are often mistaken for moles, so removal is typically done for cosmetic reasons. Celebrities such as Mark Wahlberg have famously accepted and embraced their third nipples. Harry Stiles of the band One Direction admitted to having four altogether. However, not everyone shows their supernumerary nipples so much love. Carrie Underwood had hers removed, which she admitted at her American Idol audition. This particular deformity is relatively common, affecting 1–6 percent of the American population. You may well know somebody who has an extra nipple of their own.