Patients in the endometriosis group had a significantly lower ovarian reserve, with a significantly lower mean serum AMH level (2.7 ± 2.3 ng/mL vs 3.9 ± 3.9 ng/mL, p = 0.0002) and a significantly lower mean AFC (16 ± 10 vs 20 ± 11 p < 0.0001). Here, AMH is linked to endometriosis.