Regarding the need and duration of treatment for cryptorchid penis, it should be said that the duration of surgery is based on the severity of the child’s prepuce, whether it is accompanied by symptoms such as phimosis, and the parents’ knowledge of cryptorchid penis and surgery. If the degree of phimosis is serious, children urinate bulging foreskin mouth, crooked urinary line, or repeated foreskin infection, etc., can be operated at a young age (I personally believe that the earliest general operation can be done at about 1 year of age, in order to facilitate the children’s penile development, and at the same time to reduce the psychological impact in the future). In fact, if the hidden penis is non-circumcised (foreskin can be turned up), there is no need for surgery, this kind of hidden penis is mainly due to local fat accumulation, with the development of the penis, the appearance of hidden can be improved. Those that require surgery are actually cryptorchid penises, a type that has the potential risk of affecting penile development due to the inability of the foreskin to be turned up. The purpose of the surgery is mainly to solve the circumcision and improve the conditions of penile development, except that due to the short appearance of the penis at the same time, such as purely circumcision or circumcision may still cause problems with the appearance of the penis, and even in some children who are not operated by a pediatric urologist, the foreskin is removed too much, but instead of affecting the growth of the penis, so the cryptorchid penile surgery is performed at the same time as the solution of circumcision and circumcision to improve the appearance of the penis The condition of the penis is improved. It is recommended that this type of surgery be performed by an experienced pediatric urologist.