An inherited deficiency of coagulation factor VIII characterized by the tendency to spontaneous or exaggerated post-traumatic hemorrhage. Inherited as an X-linked recessive disease, hemophilia A is the most common hemophilia, occurring in approximately 1 in 10,000 male births.

An X-linked recessive deficiency of coagulation factor VIII characterized by a tendency to bleed. Hemophilia A, the most common type of hemophilia, occurs in approximately 1 in 4,000 to 1 in 5,000 live male births.

Classic hemophilia resulting from a deficiency of factor VIII; an inherited disorder of blood coagulation characterized by a permanent tendency to hemorrhage.

Hemophilia A is characterized by deficiency in factor VIII clotting activity that results in prolonged oozing after injuries, tooth extractions, or surgery, and delayed or recurrent bleeding prior to complete wound healing. The age of diagnosis and frequency of bleeding episodes are related to the level of factor VIII clotting activity. Individuals with severe hemophilia A are usually diagnosed during the first two years of life following bleeding from minor mouth injuries and large "goose eggs" from minor head bumps. Without prophylactic treatment, they may average up to two to five spontaneous bleeding episodes each month including spontaneous joint bleeds or deep-muscle hematomas, and prolonged bleeding or excessive pain and swelling from minor injuries, surgery, and tooth extractions. Individuals with moderate hemophilia A seldom have spontaneous bleeding; however, they do have prolonged or delayed oozing after relatively minor trauma and are usually diagnosed before age five to six years; the frequency of bleeding episodes varies, usually from once a month to once a year. Individuals with mild hemophilia A do not have spontaneous bleeding episodes; however, without pre- and postoperative treatment, abnormal bleeding occurs with surgery or tooth extractions; the frequency of bleeding episodes varies widely, typically from once a year to once every ten years. Individuals with mild hemophilia A are often not diagnosed until later in life. Approximately 30% of...

The classic hemophilia resulting from a deficiency of factor VIII. It is an inherited disorder of blood coagulation characterized by a permanent tendency to hemorrhage.

Hemophilia A is an inherited, X-linked, recessive disorder caused by deficiency of functional plasma clotting factor VIII (FVIII). In a significant number of cases, the disorder results from a new mutation or an acquired immunologic process.

Hemophilia A is an inherited bleeding disorder in which the blood does not clot normally. People with hemophilia A will bleed more than normal after an injury, surgery, or dental procedure. This disorder can be severe, moderate, or mild. In severe cases, heavy bleeding occurs after minor injury or even when there is no injury...