Abstract: Tubal sterilization is one of the most commonly used and long-term contraceptive methods for women, including bilateral salpingectomy, tubal occlusion and tubal ligation. These procedures with own characteristics can be implemented in the laparoscopic, hysteroscopic or surgery way. Among these procedures, salpingectomy has the irreversibility of fallopian tube reconstruction with a remarkable contraceptive effect, while tubal occlusion and tubal ligation have the reversibility of fallopian tube reconstruction with a certain rate of contraceptive failure. The etilogical mechanisms of contraceptive failure are In this paper, we report two cases of re-pregnancy after tubal sterilization, and reviewed the tubal sterilization and contraceptive failure. In conclusion, the re-pregnancy after tubal sterilization should be alarmed and treated accurately.

Key words: Sterilization, tubal, Contraception, Pregnancy, Pregnancy, ectopic, Case reports