When two medications have the same effect, a head-to-head trial is often the best way to see which one is more effective.

Taking "the pill" has become a routine part of life for many women around the world. But that doesn't mean birth control pills are entirely without risk.

The use of hormones during menopause was once thought to protect against heart disease, but that may not be the case.

One of the few vaccines that can actually protect against cancer is the human papillomavirus (HPV) vaccine, which prevents four strains of HPV. But some parents have expressed concerns about the safety of the HPV vaccine.

One of the things doctors look for after surgery is the possibility of blood clots forming. Most cancer surgery patients have a high risk of blood clots. Head and neck cancer surgery patients were believed to be at low risk for blood clots. New research suggests otherwise.