Effects of sterilization on menstruation.
We surveyed 551 women more than a year after they or their husbands had had a sterilization operation. According to menstrual data from before and after the operation, a much greater proportion of women who had been sterilized had longer periods after the operation than before, but so did women whose husbands had had a vasectomy. Women who had taken an oral contraceptive before operation, had more days of bleeding and heavier bleeding than women who had been using other methods of contraception; those who had an intrauterine device removed had fewer days of bleeding after the sterilization operation. Discontinuing the previous contraception probably had a greater effect on menstruation than had the operation, for the effect was the same for those who had sterilization and the women whose husbands had an operation.
D003267:Contraception; D003276:Contraceptives, Oral / Q000494:pharmacology; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008297:Male; D008598:Menstruation / Q000187:drug effects; D008599:Menstruation Disturbances / Q000209:etiology; D013245:Sterilization, Reproductive / Q000009:adverse effects; D013246:Sterilization, Tubal / Q000009:adverse effects; D014659:Vasectomy
D003276:Contraceptives, Oral