Hemophilia

Hemophilia is a group of inherited bleeding disorders characterized by severe coagulation dysfunction, caused by congenital deficiency of clotting factors. Due to insufficient clotting factors in the patient's body, blood cannot clot normally at the site of vascular injury, leading to persistent bleeding and a series of symptoms. Based on the type of deficient clotting factor, it can be divided into hemophilia A (factor VIII deficiency) and hemophilia B (factor IX deficiency).