AMH and endometriosis: With regard to endometriosis severity, a prospective study found that, although there was no significant correlation between the preoperative AMH levels and the rASRM score (r = −0.219, p = 0.187), a positive correlation between the rASRM score and the rate of AMH decline post-OMA cystectomy was noted (r = 0.473, p = 0.00273), with patients with more advanced disease experiencing a larger loss of their ovarian reserve [64].