People who receive AstraZeneca’s COVID-19 vaccine have a slightly increased risk of bleeding problems, according to a study published June 9 in Nature Medicine. Researchers observed adults in Scotland ...

Bleeding complications, some of them fatal, have been reported in clinical tests of an experimental Mersana Therapeutics ovarian cancer drug, prompting the FDA to pause enrollment in two studies. The ...

Learn when weird or abnormal bleeding might signal cancer and when to call your doctor or primary care professional.

Hemophilia is a rare genetic condition that prevents your blood from clotting and can lead to bleeding problems. People with hemophilia can have bleeding episodes that happen without trauma and can ...

Uterine fibroids are muscular tumors that can cause bleeding between menstrual periods. Endometrial hyperplasia causes the ...