The proportion of breast cancer patients who are opting for double mastectomies when far less radical surgery would suffice has increased sharply, a trend that disturbs some experts.

The idea that a woman's personality traits can make her more prone to breast cancer appears nothing more than a myth, according to a Dutch study.

Having to pay as little as $10 of a mammogram’s cost leads many older women to skip the breast cancer exam, a large study of Medicare users finds.

Hormone replacement therapy can raise the risk of an uncommon type of breast cancer fourfold after just three years, U.S. researchers reported.

U.S. regulators cleared a new genetic test on Monday that helps predict tumor recurrence and long-term survival in breast cancer patients with higher risk of the cancer returning.

Scientists are developing a screening test for breast cancer that checks a woman's saliva for evidence of the disease to help find tumors early, when they are most treatable.

Depression appears to somewhat heighten the risk of breast cancer, but it has no significant association with lung, colon or prostate cancer, according to a review of the medical literature conducted by Dutch researchers.

Doctors are encouraging a new group of people to consider getting tested for genes that raise the risk of breast cancer: men.

Thousands of breast cancer patients each year could be spared chemotherapy or get gentler versions of it without harming their odds of beating the disease.

Researchers say they’ve discovered why women who inherit a mutated version of the gene BRCA1 run a high risk of breast cancer, a finding that may lead to new treatments.