This document discusses risk factors, symptoms, screening methods, diagnostic tests, and treatment options for breast cancer. Some key risk factors mentioned include age, family history, and genetic factors. Common symptoms are a lump in the breast, discharge from the nipple, or a change in shape or texture of the breast. Screening methods include breast self-examination, clinical breast examination, and diagnostic imaging tests such as mammography. If cancer is suspected, biopsy procedures are used for diagnosis. Treatment involves surgery such as lumpectomy or mastectomy, as well as chemotherapy, radiation therapy, hormone therapy, and immunotherapy.