AMH and Hypergonadotropic hypogonadism: Excluding anorchid patients, the majority of whom showed very high gonadotropin levels, only a very low proportion of prepubertal cryptorchid boys had a mild elevation of serum gonadotropins, even in the case of patients with manifest primary hypogonadism as revealed by abnormally low serum AMH levels, thus emphasizing that primary hypogonadism is rarely hypergonadotropic in prepubertal patients (33, 70, 71).