



Idiopathic thrombocytopenic purpura is a bleeding disorder characterized by too few platelets in the blood. This is because platelets are being destroyed by the immune system. Idiopathic means the exact cause of the disease is unknown.
Because more is being learned about the autoimmune nature of the disease, it is sometimes called immune thrombocytopenic purpura.
Immune thrombocytopenic purpura; ITP