Breast Cancer - Topic Overview This topic is for people who have been diagnosed with breast cancer for the first time. If you are looking for information on breast cancer that has spread or come back after treatment, see the topic Breast Cancer, Metastatic or Recurrent.
Breast Cancer - Symptoms The first sign of breast cancer is often a painless lump. However, early breast cancer is often found on a mammogram before a lump can be felt. Other symptoms of breast cancer may not appear until the cancer is more advanced.