In our clinical work, we often see some babies seeking treatment for penile shortening, and this article will analyze the treatment of children with this condition. The treatment of the two is completely different, so a clear diagnosis is needed before treatment. Yue Ming of the Department of Pediatric Surgery of the First Affiliated Hospital of Zhengzhou University Occult penis is due to the fact that the skin at the root of the foreskin is not fixed and the penile corpus cavernosum cannot be exposed well, so at first glance the penis looks short, but if the foreskin is pushed proximally, the volume of the exposed penile corpus cavernosum increases and is the same as that of normal children. This disease only needs to be fixed by suturing the skin at the root of the foreskin. However, this disease is mostly combined with obesity. Excessive obesity in babies leads to excessive fat accumulation in the lower abdomen and the root of the penis, and the excessive fat pushes the foreskin forward so that its root cannot be fixed well, even though the effect of surgery is very limited. In view of the fact that occult penis can be combined with narrow foreskin opening or pseudo-circumcision, some babies will be treated according to the above two diseases: circumcision is performed. This is not recommended, because the baby’s spongy body is hidden in the fat of its root, and its exposure is short, and the foreskin is only relatively long, not really long, so removing it will not increase the exposure of the spongy body, but will make the whole penis look like it is there, and the appearance is extremely ugly. In addition, some babies are poorly developed penile corpus cavernosum itself, these babies are more troublesome to treat, and there is no recognized clear treatment standards, but around the application of chorionic gonadotropin (HCG) treatment, but the timing and amount of hormone application is not yet a unified standard. There are some side effects of HCG application, such as premature initiation of pubertal development, perineal pigmentation, premature growth of pubic hair, premature epiphyseal closure, and height receiving effects. Therefore, it is necessary to check the baby’s own hormone level and the baby’s bone age before using it, and to individualize the medication according to the actual situation. I have been studying under Mr. Xu for a long time, and I have gained a lot of benefit from the individualized hormone administration for small penile babies, so I would like to express my gratitude to him.