Thus, age, history of pregnancy, number of embryos transferred, chronic endometritis, endometriosis, endometrial polyps, thyroid abnormalities, and differences in AMH values did not affect the percentage of Lactobacillus in the uterus in patients who underwent their first endometrial microbiota examination (luteal phase) without using antibiotics for 4 weeks prior to the test. Here, AMH is linked to thyroid gland disorder.