Immune thrombocytopenic purpura

Immune thrombocytopenia (ITP), also known as immune thrombocytopenic purpura, idiopathic immune thrombocytopenia, primary immune thrombocytopenia, Idiopathic thrombocytopenic purpura, primary immune thrombocytopenic purpura, or autoimmune thrombocytopenic purpura, is defined as isolated low platelet count (thrombocytopenia) with normal bone marrow and the absence of other causes of thrombocytopenia. It causes a characteristic purpuric rash and an increased tendency to bleed. Two distinct clinical syndromes manifest as an acute condition in children and a chronic condition in adults. The acute form often follows an infection and has a spontaneous resolution within two months. Chronic immune thrombocytopenia persists longer than six months with a specific cause being unknown.