CYP17A1 and polycystic ovary syndrome: In this study, the main conclusion is based on data from nucleotide sequencing at the site of CYP17A1 polymorphisms, as well as the study of the hormones including dehydroepiandrosterone DHEAS, 17a-hydroxyprogesterone, androstenedione, and serum testosterone levels to evaluate the 152bp region inside the promoter sequences of CYP17A1 in a distinct combination of women with PCOS manifestations based on the Rotterdam criteria.