Breast cancer often has the ability to metastasize to the lymph nodes, liver, brain, bones, and lungs. However, no matter what organs breast cancer has spread to, it is still referred to as breast cancer, for example, when breast cancer metastasizes to the lungs, it does not mean that you have lung cancer.

Breast cancer initially grows only locally, then invades surrounding tissues and finally metastasizes to other organs. Breast cancer cells often metastasize to places such as bones, lungs, and brain.