The 8-year-old Xiao Qiang is often taunted by his classmates because of his short penis, for which his parents have been a bit annoyed recently. Mom recently found that the original lively son Xiao Qiang recently but always sad face, back from school, not a word, a school bag thrown in their rooms, play very good classmates also disappeared contact, personality has become withdrawn. When his mother asked him why, the baby said that children laugh at his small penis so small that he could not see. This said his parents were stunned. The chubby baby’s penis is really not easy to see, there is only a small pimple protrusion, compared to the penis of children of the same age much smaller. The baby had no penis? With this question, they found Dr. Yao in the urology department of the Ninth Hospital. Dr. Yao examined the baby’s penis and found that there was only a mound about 1cm high, surrounded by thick fat, but a simple way to reveal the peek-a-boo penis: we squeezed backwards at the root of the penis and a normal-sized penis about 3cm long was revealed, which disappeared again as soon as we let go. It turns out that the baby does not have a penis but is “hiding”. This condition is medically known as “occult penis”, which is bound by fibrous tissue in a pile of fat. For this reason, Dr. Yao performed a successful surgery to “pull” the penis out and fix it well, so that the penis could return to its normal anatomical form and eliminate the parents’ worries. This is not a special case, but every year, the hospital sees a group of these children during the winter and summer. The occult penis is the result of congenital developmental abnormalities and is more common in obese children. The reason is that the skin of the penis area is separated from the penis body, so that the penis cannot extend out normally, and the penis body is partially or completely hidden in the subcutaneous fatty tissue in front of the pubic bone. What can be done to pull out the “hidden” penis? The problem can be solved with a simple penile orthodontic surgery. By the way, do not do circumcision, although this operation can temporarily make the penis body exposed, but the foreskin is short, the penis body is still as hidden as before the operation, not only can not solve the problem but also may make the penis sink deeper, and lose the skin needed for penile correction. Is it okay to not have surgery? Some parents think that it doesn’t matter if their child has a short penis, it will naturally thicken and grow after puberty. In fact, many of those who have regrets about their short penis as adults are due to the failure to detect and treat the concealed penis in time when they were young. Therefore it is best to have surgery, and only a few can be treated by considering strengthening exercise and reducing obesity. Preschool children are in the period of psychosexual development. At this time, if children think their penis is too small, their self-evaluation will be affected and they will have inferiority complex, and it will continue after puberty, which will also have a negative impact on their future sexual psychology. Therefore, the timing of the surgery is best carried out before the psychosexual development is mature. Of course, those who have not completed the surgery during childhood and whose adult penis development is affected can also have surgery to correct their physical length, but psychological correction is more difficult. So parents and friends should be careful not to miss the best time for surgery.