Objective:To observe the clinical effect of Wujia Shenghua capsules（WBC） for promoting postpartum uterine involution.Method: Eighty cases of full-term vaginal delivery postpartum according to the order of admission were divided into two groups: 40 cases of taking WSC（2.4 g bid for 4 days） as the observation group

40 cases without any medication as the control group.Detailed observation for vaginal bleeding diring 5 d postpartum was carried out for the two groups.Postpartum bloody lochia and pain induced by uterine contraction were also observed.Result: In the observation group

postpartum hemorrhage and severe bleeding appeared one case each.Postpartum hemorrhage（5 cases） and severe bleeding（5 cases） showed in the controls.The difference between the two groups was significant（P<0.05）.The average postpartum hemorrhage amount in the observation group was（80.51±13.8） mL

and（100.45±20.12） mL in the control group

with significant difference（P<0.05）.In observation group

postpartum bloody lochia duration was（2.56±0.60） d

the pain duration induced by contraction was（2.01±0.34） d

while those in the controls were（3.54±0.89） d

and（2.78±0.45） d.The differences were significant（P<0.05）.Conclusion: WSC for maternity can shorten the duration of bloody lochia and pain caused by uterine contraction

reduce postpartum hemorrhage

promote postpartum uterine involution.The effect is significant.