Previous research suggested that a common medicine used to treat osteoporosis had the positive side effect of reducing breast cancer risk. New research suggests that may not be true.

The amount of sex hormone's in a woman's blood may play a role her risk of breast cancer. And those sex hormone levels may show themselves in more obvious ways than once thought — in the form of moles on the skin.

Women with breast cancer often receive radiation treatments and chemotherapy to fight their disease. In some women, those treatments might bring long-term health effects that aren’t so desirable.

Not all of the long-term impacts of fertility treatment are clear. But researchers have found reassuring evidence for those hoping to have a baby using such treatments.

If you get an annual mammogram, you are reducing your risk of dying from breast cancer, right? Maybe not, say the authors of a new study challenging this assumption.

Your health care provider may emphasize the importance of exercise, but exactly how important is physical activity for staying healthy?

Postmenopausal women can become more at risk for breast cancer if they are overweight. An easy dietary change may help reduce that risk by lowering the chances of obesity.

In 2012, American women had nearly 39 million mammograms, the standard breast cancer screening method. Magnetic resonance imaging (MRI) is also gaining popularity for breast cancer screening and diagnosis.

Actress Christina Applegate, the daughter of a breast cancer survivor, had her first breast MRI (magnetic resonance imaging) in 2007. The next year she was diagnosed with breast cancer. Are more women following in Applegate’s footsteps?

One of the long-term side effects of breast cancer treatment is a condition called lymphedema. It’s a swelling of the arm that not only affects appearance, but can also be painful and interfere with function.