BOSTON - More and more women under 40 are being diagnosed with breast cancer and a Boston doctor is sharing the possible reasons why this number keeps going up. Hallie Goldstein has a history of cysts ...

Aggressive forms of breast cancer may be striking younger women far more often than previously believed, challenging long-held assumptions about who is most at risk. Emerging evidence suggests that ...

Only about 75% of eligible U.S. women schedule regular screenings. When it comes to early detection, mammograms remain the only screening test proven to reduce deaths from breast cancer in ...

A new analysis of research into the most common type of breast cancer has zeroed in on an overlooked hormone that may be responsible for the increased risk of breast cancer death in postmenopausal ...