Objective:To explore the diagnostic and therapeutic methods for male breast cancer. Methods:Clinical data of 11 cases of male breast cancer treated in our hospital from 1992 were analyzed retrospectively. Results:2 patients were diagnosed at advanced stage and survived 6 and 8 months respectively after biopsy. The other 9 patients received radical mastectomy. 3 were lost to followup, 1 was found to have pulmonary metastasis after 5 years and combined treatment of traditional Chinese medicine and western medicine was given. Nodules were found under the axillary fossa in another patient at five years after surgery and the nodules were recurrent carcinoma as confirmed by biopsy. The patient has survived for 7 years with radiotherapy and chemotherapy. The other 4 cases have survived 0.5 to 7 years respectively, and are undergoing treatment. Conclusions:Early diagnosis of male breast cancer should be emphasized. Aggressive surgery combined with other auxiliary treatments are effective.