AMH and Infertility: For example, when an infertile woman is aged 31 years old, and the duration of the secondary infertility is 3 years with a normal AMH level, suffering from mild to moderate endometriosis, without ovulation monitoring using transvaginal ultrasounds (≥2 times per menstrual cycle) after surgery, we could impute that her probability of receiving natural conception after surgery during 2-year period is 83.2% (Figures 3A, B).