The last group was fed with totally 5 dosages of Gui Qi Yi Mu San(Power of chinese angelica,astragalus and motherwort) one medicament each day at 0.8 g/kg according to the weight at 1,2,3,5,7 d postpartum.

• 用药组按 0 .；8g/ kg体质量投喂归芪益母散；给药方法为产后 1、2、3、5、7d每日 1剂；共计 5剂。