The cause of granulomatous mastitis is not clear. Surgery is performed to promote recovery from the disease, reduce recurrence of the disease, reduce the degree of breast disfigurement, and reduce patient pain. The recovery time after surgery is as follows: 1. During hospitalization: Depending on the different course of the disease and the number of surgical clearances done, the recovery time of the patient during hospitalization is determined and takes about 2-4 weeks. During the hospitalization period, the doctor will give pressure bandage and give wound care; 2. During the discharge period: 1-3 months are needed for observation after discharge. The doctor will make an appointment to observe the degree of wound recovery, including whether there is recurrence, whether the wound has delayed healing, whether there is new redness and swelling, etc. The doctor will focus on the bandage pressure dressing, bathing can not be too hard rubbing, avoid strenuous activities, and will also instruct the patient to pay attention to diet.