Compared with patients with IUAs, patients without IUAs also had a longer duration of infertility, a greater BMI, a greater basal LH level, a greater likelihood of having Type B plus Type C endometrial morphology, an endometrial thickness ≥8 mm, and an endometrial volume ≥2 ml, a greater frequency of endometrial peristalsis ≥2 times/min, a greater subendometrial volume, and a lower AFC. This evidence concerns the gene PLOD1 and Infertility.