Bariatric Surgery and Infertility: A Prospective Study

Surg Technol Int. 2017 Dec 22;31:327-330.


Background: Obesity is a worldwide disease affecting 13% of the world's adult female population. The reasons and the fetal risk are still unclear. The effect of weight loss as a result of bariatric surgery seems to induce an improvement in fertility in obese women. The main purpose of this prospective study is to demonstrate if there is an association between bariatric surgery-induced weight loss and an improvement in the fertility of women at reproductive age.

Materials and methods: From June 2013 to April 2016, all bariatric female patients from our institutes were prospectively evaluated for suitability in this study. A pool of 52 eligible patients was extracted from our database in the recruitment period. Of these, 28 underwent bariatric surgery and 24 did not. Both groups were observed for two-year follow-up. During follow-up, anthropometrics parameters, blood analysis, and comorbidities were checked and a gynaecological consultation was prescribed.

Results: Fifty participants were studied. Twenty-seven successfully underwent bariatric surgery with a percentage of excess weight loss (EWL) >70% at 24 months, while 23 accepted the observation and control for 24 months as an integral part of the pre-surgical bariatric program. The contingency table analysis showed an extremely significant association (P<0.0001) between exposition (bariatric surgery) and event (pregnancy), with a relative risk (RR) = 15.33 and confidence interval (CI) 95%=2.213 to 106.26.

Conclusions: Bariatric surgery improves fertility in obese women at two years' postoperative. Every obese woman with difficulties becoming pregnant should undergo a bariatric surgery consultation. Further studies are necessary to confirm our results.

Publication types

  • Observational Study

MeSH terms

  • Adult
  • Bariatric Surgery / statistics & numerical data*
  • Female
  • Humans
  • Infertility, Female* / complications
  • Infertility, Female* / epidemiology
  • Obesity, Morbid* / complications
  • Obesity, Morbid* / epidemiology
  • Obesity, Morbid* / surgery
  • Pregnancy
  • Prospective Studies