What are signs of male breast cancer?

Same as women: A lump felt on the breast/chest, abnormal skin changes, nipple discharge, nipple inversion, palpable mass in the axilla/underarm. Male breast cancer is treated with the same options as women: surgery, radiation, chemotherapy and hormonal therapy.

A Mass: The typical sign of male breast cancer is a new mass or lump that appears in the male breast.

Same as females: It usually starts as a lump which is easier to feel than a female breast cancer as the breast size itself is small. It may also present as nipple discharge or irritated nipple. The treatment and prognosis is same as female stage for stage. It may be indicative of genetic breast cancer.