Cancer is a complicated disease, and many times it is hard to pinpoint the exact reason why it happened. While doctors are still unclear on what causes breast cancer, research has allowed them to get a better idea of the major risk factors that contribute to the development of the disease.
Having one or several risk factors doesn’t necessarily mean that you will develop breast cancer; in fact, some women who are considered high-risk never develop the disease. However, these are some of the intrinsic and extrinsic factors that have been observed in breast cancer cases.