Acute immune thrombocytopenic purpura, also known as primary immune thrombocytopenia, has an acute onset and the treatment cycle is about three months, depending on the condition. The pathogenesis of primary immune thrombocytopenic purpura is due to autoimmune dysfunction, so that the body’s antibody destroys its own platelets and inhibits the maturation and differentiation of the megakaryocytes in the bone marrow, thus causing thrombocytopenia and hemorrhage of a class of diseases. Most primary immune thrombocytopenia can be cured, but a few will recur. If the condition is mild, it resolves in about 2 to 6 weeks. If the condition is more severe, it may take longer, possibly around three months. Primary immune thrombocytopenia can be treated with glucocorticoid drugs, such as dexamethasone acetate tablets, prednisone acetate tablets, hydrocortisone acetate tablets and so on. If the condition is serious and does not improve with medication, it can be treated with surgery, such as splenectomy. In addition, the treatment cycle of primary immune thrombocytopenia needs to be decided according to the condition, but the drugs should be taken in accordance with the doctor’s instructions, and the dosage should not be blindly increased or decreased, so as to avoid adverse reactions and aggravation of the condition.