Obesity is one of the leading causes of infertility, pregnancy complications, and polycystic ovarian disease. Effective weight loss is essential for women's health. Obesity can cause absence of menstruation, failure of ovulation, subfertility, infertility, irregular menses, polycystic ovarian syndrome, and poorer outcomes with assisted reproduction. It is also associated with higher rates of pregnancy complications like miscarriages, pregnancy-induced hypertension, gestational diabetes, blood clots, preterm birth, stillbirth, and congenital anomalies. Maintaining a healthy lifestyle through diet, exercise, and checkups can help address these reproductive health issues.