http://www.nhlbi.nih.gov/health/dci/Diseases/hemophilia/hemophilia_signs.htmlWhat Are the Signs and Symptoms of Hemophilia?
The major signs and symptoms of hemophilia are excessive bleeding and easy bruising.
Excessive Bleeding
The extent of bleeding depends on the type and severity of the hemophilia. Children who have mild hemophilia may not have symptoms unless they have excessive bleeding from a dental procedure, an accident, or surgery. Males who have severe hemophilia may bleed heavily after circumcision.
Bleeding can occur on the body's surface (external bleeding) or inside the body (internal bleeding).
Signs of excessive external bleeding include:
Bleeding in the mouth from a cut or bite or from cutting or losing a tooth
Nosebleeds for no obvious reason
Heavy bleeding from a minor cut
Bleeding from a cut that resumes after stopping for a short time
Signs of internal bleeding include blood in the urine (from bleeding in the kidneys or bladder) and blood in the stool (from bleeding in the intestines or stomach).
Bleeding in the Joints
Bleeding in the knees, elbows, or other joints is another common form of internal bleeding in people who have hemophilia. This bleeding can occur without obvious injury.
At first, the bleeding causes tightness in the joint with no real pain or any visible signs of bleeding. The joint then becomes swollen, hot to touch, and painful to bend.
Swelling continues as bleeding continues. Eventually, movement in the joint is temporarily lost. Pain can be severe. Joint bleeding that isn't quickly treated can permanently damage the joint.
Bleeding in the Brain
Internal bleeding in the brain is a very serious complication of hemophilia that can happen after a simple bump on the head or a more serious injury. The signs and symptoms of bleeding in the brain include:
Long-lasting, painful headaches or neck pain or stiffness
Repeated vomiting
Sleepiness or changes in behavior
Sudden weakness or clumsiness of the arms or legs or problems walking
Double vision
Convulsions or seizures
What is the difference between hemophilia and thrombotic thrombocytopenic purpura?
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2663608Among the autoimmune diseases that affect human blood, hemolytic anemia and autoimmune thrombocytopenia are the most frequent and the best known from a diagnostic and therapeutic point of view. More seldom, autoantibodies may develop against components of the hemostasis system. Some of them neutralize proteins involved in the regulation of thrombus formation, causing acquired thrombotic tendencies due to autoantibodies inactivating naturally occurring anticoagulants such as protein C and protein S,1,2 or the von Willebrand factor cleaving protease ADAMTS13.3,4 On the other hand, autoantibodies directed against procoagulant factors cause a bleeding tendency, such as acquired hemophilia A due to the development of anti-factor VIII (FVIII) autoantibodies (autoantibodies against procoagulant factors other than FVIII are rare).5
Acquired hemophilia has a yearly incidence of no more than one case per million in the general population, and affects not only patients with pre-existing autoimmune diseases (systemic lupus erythematosus, rheumatoid arthritis, myasthenia, Sjogren syndrome, hyperthyroidism and others) but also (and more frequently) previously healthy people. Typically, there are two peaks of age of onset of acquired hemophilia: in the young adult, mainly in women who develop this complication in the post-partum period; and in the elderly, usually with no underlying disease.5 Acquired hemophilia is much more clinically severe than congenital hemophilia, and is more difficult to diagnose, also because cases are seen in an array of clinical settings that are not usually equipped to tackle them. Even the specialized center, however, sees a very limited number of cases, so that is difficult to acquire a truly wide experience in acquired hemophilia. It is not surprising, therefore, that nine experts from three continents chose to put together their experiences in an article meant to provide consensus recommendations on the diagnosis and treatment of acquired hemophilia.6