Extra Nipples
Extra Nipples Definition
Supernumerary nipples, or extra nipples, are additional nipples that have developed in one's mammary area. They appear along vertical milk lines near the armpits. They are often mistaken as moles. These nipples however, do not perform the same functions as normal nipples. Among the famous personalities with extra nipples are actor Mark Wahlberg and American Idol singer Carrie Underwood.