Weight and Infertility

How do I know if I am a good weight for pregnancy?

One of the easiest ways to determine if you are underweight or overweight is to calculate your body mass index (BMI). There are many tables available online (search term: BMI table). Enter your height and weight into the tool to see your BMI.

What is a normal BMI?

A BMI between 19 and 24 is considered normal; less than 19 is considered underweight. A BMI between 25 and 29 is considered overweight and greater than 30 places you in the category of obese.

How does weight affect fertility in women?

Many underweight, overweight, and obese women have no problem getting pregnant. But others will have problems conceiving, most often due to ovulation problems (failure to release eggs from the ovaries).

How does weight affect fertility in women?

Many underweight, overweight, and obese women have no problem getting pregnant. But others will have problems conceiving, most often due to ovulation problems (failure to release eggs from the ovaries).
A BMI of 18.5 or less (underweight) often causes irregular menstrual cycles and may cause ovulation to stop altogether. A BMI of 17.5 or less could indicate an eating disorder. Women at less than normal BMI should work with their doctor to understand the cause of this situation, and develop strategies to correct it. A BMI in the obese range may also lead to irregular menstrual cycles and ovulation. However, even obese women with normal ovulation cycles have lower pregnancy rates than normal weight women, so ovulation isn’t the only issue. A visit to a health-care professional before becoming pregnant can help identify other disorders related to obesity that impact pregnancy such as thyroid disease, insulin resistance, and diabetes.

Body fat plays a critical role in human reproduction. Both excess and deficiency of body fat lead to reproductive failure. Body weight disorders is one of the first potential causes of reproductive failure in both men and women. This is a problem that can be corrected by the affected individual and the infertile couple.