### What Are Extra Nipples? Extra nipples, also known as supernumerary nipples, are additional nipples that some people have on their bodies. They are relatively common, occurring in about 1% to 5% of the population. These extra nipples are usually harmless and often go unnoticed. ### How Do They Look? Extra nipples can look like small moles or birthmarks and are usually found along the milk lines, which run from the armpits to the groin. They can appear alone or in multiples and may resemble the regular nipples on your chest. Sometimes, hormonal changes can cause them to ache. ### Health Impact In most cases, extra nipples do not cause any health problems. They are usually removed for cosmetic reasons rather than medical ones. However, if an extra nipple hardens, develops lumps, or causes discomfort, it is important to see a doctor. In rare cases, extra nipples can be linked to underlying health issues such as congenital breast defects or kidney conditions. ### When to See a Doctor If you are unsure whether you have an extra nipple or if you notice any changes in it, consult a doctor. Regular check-ups can help monitor any unusual activity or abnormal growth. If necessary, a doctor may recommend surgery to remove the extra nipple, which is usually a quick and almost painless outpatient procedure.