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 ...

Hemophilia is a rare genetic condition that keeps your blood from clotting, leading to bleeding problems. Bleeding can happen at any time (spontaneous) or as a result of trauma (injury, cut, or fall).

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 ...