Abstract: Objective：To investigate the effect of various methods in the treatment of infertility. Methods：Summarize 955 cases of secondary infertility diagnosed in our hospital from 2007 to 2009，and analyze the various treatment methods and pregnancy outcome. Results：① In ovulation disorders patients，65 cases undergo ovulation induction therapy and the pregnancy rate was 47.69%；laparoscopic fenestration of 29 cases and the pregnancy rate was 65.52%；14 cases of in vitro fertilization and embryo transfer（IVF-ET） and the pregnancy rate was 57.14%. ② 95 cases with tubal-line treatment and the pregnancy rate was 33.68%；81 cases of tubal plastic surgery under laparoscope and the pregnancy rate was 60.49% in tubal factor infertility. ③ 94 cases with artificial cycle therapy and the pregnancy rate was 60.63%；168 cases with surgery treatment and the pregnancy rate was 61.31%；67 cases of IVF-ET and the pregnancy rate was 26.87% in uterine factor infertility. ④ 23 cases of IVF-ET in unexplained secondary infertility and the pregnancy rate was 21.74%. Total of pregnancy rate was 37.35% in IVF-ET therapy. Conclusions：The right treatment may improve the pregnancy rate for different causes of infertility.

Key words: Infertility, female, Polycystic ovary syndrome, Fallopian tube obstruction, Fertilization in vitro, Embryo transfer