Contraception after bariatric surgery

Pregnancy should be avoided for 12 months after bariatric surgery because it may be associated with an increased risk of maternal and child complications.

A nonoral method of contraception should be used, because absorption of oral contraceptives may be reduced after bariatric surgery. An IUD, etonogestrel implant or vaginal ring may be preferred options, because both depot medroxyprogesterone and bariatric surgery are associated with a loss of bone mineral density.