AMH and vitamin D deficiency: Results: Phenotype D (n=104, 49.06%) was the most common among participants, followed by Phenotypes A, C, and B. BMI and serum anti-Müllerian hormone (AMH) levels showed significant associations with PCOS phenotypes, with the highest BMI observed in Phenotype A; 53.8% (n=114) of participants had vitamin D deficiency.