Children’s genitals are red and swollen with pain, in the clinic is mostly due to the circumcision of the glans. The cause of glans phimosis is usually a long foreskin, the foreskin scale infection, so the infection in this case should be timely anti-inflammatory, cleaning, and gradually wait for the inflammation to recede after the foreskin should be frequently turned to clean. If there is a child with a prepuce can perform circumcision or circumcision expansion operation to lift the adhesion between the foreskin and the glans, exposing the glans for cleaning, to achieve the purpose of preventing infection. If in the acute infection period can be used topical application of Bactrim or lincomycin ointment for topical application to eliminate the local infection.