The prevalence of obesity is increasing and it has become an epidemic worldwide. Obesity has a lot of ill effects on health, especially the reproductive system. Obesity is one of the causes of infertility in women. Overweight women have higher chances of problems in the menstrual cycle, said an infertility doctor in Kolkata.

How does obesity cause infertility? Explains an infertility doctor

A top infertility specialist in Kolkata said obesity often leads to infertility by changing the way a woman’s body stores the sex hormones. Let’s discuss how:

Obesity mainly causes insulin resistance in the body and leads to anovulation or failure to produce eggs. The underlying cause of anovulation is likely due to polycystic ovary syndrome. PCOS is associated with obesity with symptoms like acne, high cholesterol level, and hairline recession.

The ideal BMI for getting pregnant should be between 18.5 to 24.9. If your BMI is more than 24.9, there are higher chances that you will have infertility issues.

The impact of obesity on female fertility can be attributed to increased endocrine metabolism and estrogen levels, which interferences with ovarian function and reduce the ability to ovulate eggs.

Also being overweight is also associated with negative outcomes in patients undergoing IVF. Hence obese women are recommended to maintain a healthy body weight to improve their fertility functions.

Obesity and miscarriage

The best infertility specialist stated that overweight women are at increased risk of miscarriage no matter if they had a natural conception or through assisted reproductive measures. This is mainly due to the following reasons:

  • Poor egg quality in the ovum
  • Change in the sex hormone levels during pregnancy
  • Failed implantation of the fertilized egg due to insulin resistance.

Lifestyle changes to improve fertility in an obese woman

Obese women are suggested to make certain lifestyle changes to increase their chance of conception, said an infertility specialist in Kolkata. Weight loss programs that include a balanced diet and exercise can promote the regularity of the menstrual cycle and improve your chance of conception.

A modest weight loss and physical activity of at least 2- 3 hours a day is strongly suggested to improve the health and fertility issues of obese women.

Moreover, there are various infertility treatment options that you can undergo to help you conceive and have a successful pregnancy.


Overweight women must be aware of the necessity of pre-pregnancy weight loss and understand the importance of maintaining a healthy weight.

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