Polycystic ovary syndrome is a highly prevalent and important cause of infertility. This complication demonstrates relationships with obesity, increased androgen production, and insulin resistance. The typical pattern of dyslipidemia in women with PCOS is a decrease in high-density lipoprotein and an increase in triglycerides. On the other hand, fat people are at a higher risk of hyperandrogenism, insulin resistance, hypercholesterolemia, hypertriglyceridemia, and infertility compared to ordinary people. In this cross-sectional study, 150 patients under 40 years suffering from PCOS based on the Rotterdam criteria, who were candidates for in vitro fertilization (IVF), were examined at Yas Hospital (Tehran, Iran) from April to September 2022. In addition to demographic information, lipid profile, body mass index, obstetric, fasting blood sugar (FBS), beta HCG (negative or positive), and ultrasound were also checked and pregnancy status was checked six weeks later. The rate of clinical and chemical pregnancy in women with a normal BMI was about two times that of women with a BMI above 25kg/m2. In addition, the pregnancy rate in women with dyslipidemia was significantly lower than that in ordinary women. The amount of FBS was substantially lower in people with positive pregnancies. The probability of pregnancy in PCOS women with a BMI is higher than normal women, and dyslipidemia is lower than that in ordinary people. Therefore, enhancing BMI and dyslipidemia in these women before starting infertility treatment is recommended.