Nipple polyps usually refer to the appearance of redundant tissue on the nipple, and are considered to be related to factors such as granulomatous mastitis, plasma cell mastitis, and nipple inflammation. For patients with granulomatous mastitis, this is a disease that tends to be autoimmune-related, and is considered to have a strong relationship with breastfeeding factors, infections, etc., which can cause the patient’s nipples to appear superfluous. In addition, the appearance of plasma cell mastitis is mainly related to bacterial infection, blockage of milk ducts, nipple inversion and other factors, which in turn cause irritation to the nipple area and the appearance of nipple growths. For women who are breastfeeding, the baby will irritate the nipple area during sucking, and not paying attention to cleaning the nipple area after breastfeeding, which can easily cause bacterial infection and nipple polyps. Nipple polyps can also be caused by tumors, viral infections, etc. It is recommended that the patient should go to the breast surgery department of the hospital for consultation, and cooperate with the doctor to clarify the specific causes before treatment.