Why do people have extra nipples?

Extra nipples were once thought to be a link to our evolutionary past, but the truth is a lot stranger, writes Jason G Goldman.

I don't feel lump directly underneath my nipple but around it, I have puffy nipples too. Is it gyno or is it just because I am fat? - Quora

Doctor reveals the strange place you could have a nipple

supernumerary nipples - pictures, photos

Harry Styles and his extra nipples, plus Gemma Arterton, Lily

Embarrassing Illnesses, Third Nipple

Celebrities With Extra Nipples: Harry Styles & More – Hollywood Life

What Does Having a Third Nipple Mean? Supernumerary Nipples - GoodRx

Melissa Flanagan (@missykay115) / X

Five Interesting Facts About Nipples

Supernumerary Nipple: Causes, Diagnosis, and Images — DermNet

Melissa Flanagan (@missykay115) / X