Conclusion: it is suggested that compound arginine can be used to treat asthenospermia and oligospermia without severe adverse reaction.

Objective:To study the relationship between polymorphism of (CAG)n repeats within androgen receptor gene with severe oligozoospermia or azoospermia patients.

The rate of male factors in the causes of infertility has been increasing year by year, and is almost equal with female factors. Among them, oligoasthenotspermia takes a great proportion.