ON THIS PAGE: You will find a list of common tests, procedures, and scans that doctors use to find the cause of a medical problem. Use the menu to see other pages.
Doctors use many tests to find, or diagnose, breast cancer. They also do tests to learn if the cancer has spread to a part of the body other than the breast and the lymph nodes under the arm. If this happens, it is called metastasis (See the Metastatic Breast Cancer guide for more information). Doctors may also do tests to learn which treatments could work best.