<s>[INST] Does Obesity Affect Fertility? [/INST] Obesity affects your hormones and can lead to insulin resistance. As a result, women who are obese have higher rates of menstrual dysfunction, including lack of periods or irregular periods. This causes problems in the production and release of eggs, resulting in infertility.Obesity also affects a woman’s chances of getting pregnant through assisted means, such as IVF (in-vitro fertilization). Source: Temple Health. Link: https://www.templehealth.org/services/bariatric-surgery/patient-support/maintaining-weight-loss/obesity-faq. Field: Endocrinology. Disease: Obesity </s>