Primary Idiopathic Thrombocytopenic Purpura, also known as primary immune thrombocytopenic purpura and autoimmune thrombocytopenic purpura, is defined as an isolated low platelet count with normal bone marrow and the absence of other causes of thrombocytopenia. It causes characteristic purpuric rash and an increased tendency to bleed.

Lists of diseases and disorders, signs, symptoms