The incidence of small penis in patients with hypospadias is higher than in normal people. I do not advocate the application of hcg (chorionic gonadotropin) treatment in the first place, as it may affect the height of future stature if applied continuously for several months (only a few times will not have a significant effect). And it is not certain whether it can promote penile growth. Because a considerable number of patients are congenitally small penis, their penis is small, not because of low androgen level, but because the target organ (penis) is not sensitive to androgen stimulation. If androgen therapy is applied, I advocate that it is okay to use androgen therapy after the child’s puberty and after the child’s stature has grown tall enough. The minimum height of the child’s body is the minimum condition for the child’s employment, and it is a big question of whether he can support himself or not. I surgically treat about ten patients with hypospadias every month, and I do not advocate the application of hcg (chorionic gonadotropin) treatment for some patients with perineal hypospadias whose penis is only a little bigger than a peanut. I have cured more than 150 cases of perineal hypospadias, and according to my observation, about half of the patients with perineal hypospadias have small penises that do not grow to the level of a normal person in their lifetime. If you are keen to apply hcg short course (one month) treatment to try it out, you should also have your body hormone measured first, and if the androgen level is low, you can try it out. Also, in case of perineal hypospadias with small penis, some patients may have hermaphroditism and must also do chromosome test for the child.