Breast Cancer Treatment and Staging: Breast cancer is staged 0 through IV, with IV being the most severe. Treatment is based on the individual woman and how her cancer responds. Therapies include chemotherapy, radiation, hormonal therapy and surgery.
Breast Cancer Survival Rates, Prognosis, and Statistics When you catch it early, breast cancer can be treated effectively in many cases. Depending on the stage of the cancer, the five-year survival rate can range from 100 percent to 22 percent if the cancer is detected at stage IV.