While it is not common, having more than two nipples is actually a thing. This condition is known as polythelia and occurs in both males and females. It is estimated that it affects about 1-5% of the population. While the exact cause of this condition is unknown, some believe it could be due to a hormonal imbalance or genetic factor.

Polythelia can range from having one extra nipple to having multiple extra nipples, and they can appear anywhere on the body. They usually look like regular nipples but may have no underlying tissue or milk ducts associated with them. In most cases, they are harmless and do not require any medical treatment unless they become irritated or infected.