Patrick Muldoon's death certificate revealed he was dealing with a type of blood disorder. Here's what to know.

A major study found that people with blood type A may face a higher early stroke risk linked to blood-clotting mechanisms and ...

When Domenic Catrine was born, his heel swelled up from his vitamin K shot. His circumcision site wouldn't stop bleeding. At the Children's Hospital of Philadelphia, Catrine was diagnosed as having ...

For men with hemophilia B, receipt of gene therapy comprising an infusion of etranacogene dezaparvovec results in sustained endogenous factor IX expression and low annualized bleeding rates over five ...

High concentrations of lipoprotein(a), a molecule in the body used for accelerating wound healing, blood clotting and stimulating growth of new vessels, are associated with an increased risk of heart ...