ITP, known as primary immune thrombocytopenia and also called idiopathic thrombocytopenic purpura, is an acquired immune disease. The common cause in adults is the development of anti-platelet autoantibodies. In children, the common cause is a viral infection that leads to an autoimmune response. Acute idiopathic thrombocytopenic purpura is generally more acute in onset, with clinical manifestations of bleeding from the skin or mucous membranes, and bruising of the skin. Acute idiopathic thrombocytopenic purpura is generally a self-limiting disease, and symptomatic treatment is sufficient. Chronic idiopathic thrombocytopenic purpura is not obvious, clinical manifestations of small bleeding spots on the skin, may be accompanied by fever, fatigue, etc., so it is easy for patients to ignore the symptoms. If you feel unwell, it is recommended to go to the hospital to see a professional doctor for a clear diagnosis and active treatment.