A small meatball on the nipple may be caused by Montgomery’s nodule, inflammation and infection, melanoma, and you should consult a doctor in time to clarify the cause of the disease. 1. Montgomery’s nodule: it is an accessory organ of the nipple and areola area, which can be manifested as some small meatballs on the nipple, which can secrete oil to protect the local skin, and generally do not need special treatment, and should be protected. 2. Inflammatory infections: If the small meatballs on the nipple are accompanied by local redness, heat and pain, it should be considered as local inflammatory infections, and in serious cases, there will be generalized fever, and penicillin, cephalosporin and other medications can be used for treatment. 3. If a small ball of flesh grows on the nipple is black and shows rapid growth, itching, bleeding, it should be considered to be caused by melanoma, it should be timely medical treatment, and actively prepare for surgery. At the same time, skin diseases such as common warts, lipoma, etc. may also appear on the nipple small meatballs. It is recommended that when there are superfluous organisms on the nipple, you should consult a regular hospital in time and standardize the treatment under the guidance of the doctor.