患儿,男,9个月。因“上感”后出现皮肤出血点,血小板数低一个月收入院。当地医院查血小板数10×10~9/L,骨髓象诊断为特发性血小板减少性紫癜”。给予先锋霉素、地塞米松(3mg/日)治疗,2天后皮肤出血点消失,但血小板数不见明显回升。而后继续用地塞米松(量不变)治疗近一个月,血小板数在16～ Children, male, 9 months. Because of the “sense of” after the skin bleeding point, the number of low platelet income a month. Local hospital check platelets 10 × 10 ~ 9 / L, bone marrow as idiopathic thrombocytopenic purpura diagnosed. "Give cephalosporin, dexamethasone (3mg / day) treatment, 2 days after the skin bleeding disappeared, but the platelet The number of no obvious recovery and then continue to use dexamethasone (constant volume) for nearly a month, the number of platelets in the 16 ~