Occult penis is a common congenital developmental abnormality and deformity, also known as buried penis. In this condition, the penis body is shrunken and hidden inside the body, and the only thing that protrudes out is the small, pointed foreskin. If you squeeze the skin of the penis inward with your hand, the penis body will be revealed, and when you release your hand, the penis body will retract. Although the appearance of occult penis is similar to circumcision, it is two completely different diseases. It should never be rashly circumcised. In fact, for occult penis, there is no excess foreskin penis skin is often just barely enough to cover the penis or even insufficient, once circumcision is received, there will be an absolute lack of penis skin phenomenon, making the appearance of the penis revealed more inconspicuous, image upright urination, erection pain, painful intercourse, etc. 1, etiology The disease is congenital because the foreskin is not attached to the penis body. 2.Clinical manifestation Penile occlusion is due to the foreskin not attached to the penile body. If you hold the penis with your fingers and push the skin around it backward, you can show the hidden penis under the skin. When the child grows and the subcutaneous fat decreases, the penis can be revealed. If the foreskin cannot be turned up to reveal the head of the penis, then a phalloplasty will be done. 3.Differential diagnosis Mainly need to distinguish from small penis, penile dysplasia and prepuce. 4.Treatment Surgery is the only effective treatment method at present. The purpose of surgery is to enlarge the foreskin opening and expose the head of the penis. Care should be taken not to do simple circumcision. There are many surgical procedures to correct occult penis there is no one specific technique for all patients, and treatment often uses a combination of several techniques.