Objective:To study the effect of invigorating spleen and kidney therapy( Xuduan Zhongzi Decoction)on treating oligospermia and asthenospermia. Methods:The study was conducted in 120 patients. They were randomly divided into 2 groups: treatment group( n = 58 )and control group( n = 57 ). Two groups were treated for one course all. In treatment group,the therapy was given Xuduan Zhongzi Decoction in 3 months per period;in control group, basic therapy was given Huangiing Zanyu Capsules in the same way as in treatment group. Results : The...