Stage IB: The cancer has spread to the lymph nodes and is larger than 0.2 mm but less than 2 mm. Either there is no sign of a tumor in the breast, or it is 20 mm or smaller (T0 or T1, N1mi, M0).

In stages 1 through 3, the tumors are larger and/or the cancer has spread to surrounding breast tissue, lymph nodes, or the ...

Our experts always are discovering new information about breast cancer. We’re learning ways to diagnose the exact type and stage of breast cancer. We’re finding out how to find it early when it’s ...

If you or a loved one have received a diagnosis of stage IV breast cancer, this means the cancer cells have spread to other parts of the body beyond the breast. This migration is called metastasis ...

Cancer Facts & Figures 2025 is an educational companion for Cancer Statistics 2025 , a scientific paper published in the ...

Breast cancer is the second leading cause of cancer death in women. Early detection results in 99% five-year survival rates.

Patient outcomes appeared to be more heavily driven by breast cancer stage than delays in diagnosis, researchers found.