Abstract: Immune thrombocytopenic purpura (ITP) is an autoimmune disease presents with isolated thrombocytopenia (thrombocyte count < 100.000/mm3) and develops due to increased thrombocyte destruction by autoantibodies. ITP is the most common cause of pediatric thrombocytopenia. Usually a self-limiting disease with an acute course of 70% - 80%. However, 20% - 25% cases are chronical. These cases are follow-up and management difficult and expensive. It is important to distinguish events that may become chronic at the time of initial diagnosis. In this study, we sought clues to be able to choose, which the patient will be chronicle?