The patient has a small hard lump in the breast, often due to the following reasons: First, breast enlargement: is a common disease in women, due to the body’s hormone level secretion abnormal caused, do not worry too much, regular review can be. If there is obvious pain, you can take oral treatment such as prolotherapy or masturbation elimination, and patients can cooperate with physical therapy, which can reduce the symptoms of discomfort. Secondly, benign breast masses: such as fibroids, can be detected by ultrasound and mammogram, if the disease is present, regular review is sufficient. Thirdly, breast cancer: a puncture biopsy or excisional biopsy is needed for clarification. If this is the case, radical resection of the tumor is needed, and chemotherapy and other related treatments are needed later.