Types of Breast Cancer

Learn about male breast cancer, its signs, risk factors, and how treatment works, in clear language for men and their families in the United States.

Learn about Paget disease of the breast, its nipple and skin symptoms, how it is linked to breast cancer, and how doctors diagnose it.

Learn about hormone receptor positive breast cancer, what estrogen and progesterone receptors mean, and how hormone therapy fits into care.

Learn about HER2 positive breast cancer, what HER2 means, how testing works, and which targeted treatments doctors often use in the United States.

Learn about inflammatory breast cancer, its signs such as redness and swelling, why it needs prompt care, and how doctors diagnose and treat it.

Learn about triple negative breast cancer, what the name means, how it is diagnosed, and which treatments doctors often use in the United States.

Learn about invasive lobular carcinoma, how it grows in the lobules, why it can be harder to feel, and how doctors diagnose and treat it.

Learn what ductal carcinoma in situ means, why it is called Stage 0, how doctors find it, and which treatment choices are usually discussed.

Learn what invasive ductal carcinoma is, how it starts in the milk ducts, how doctors diagnose it, and how treatment is planned in the United States.