The best way to restore platelets is to treat the original disease, usually medication and platelet transfusion, etc. Platelet is an important factor in the organism to promote blood clotting, when platelet is missing, it will trigger bleeding, purpura and so on. Depending on the primary disease, drug treatment and platelet transfusion can be taken. 1. Drug treatment: the treatment should be directed at the primary disease, such as primary immune thrombocytopenic purpura can be treated with glucocorticoid such as prednisone, dexamethasone and crude thrombopoietin. Acute myeloid leukemia can be treated with chemotherapy such as cytarabine. 2. Platelet transfusion: when severe thrombocytopenia occurs, platelet transfusion should be given urgently to actively prevent and control organ bleeding. The above medication, as well as platelet transfusion, should be carried out under the guidance of a physician.