1, the foreskin should be flipped every day when showering, so that the glans is exposed, cleaning the foreskin scale, and then flip back to the foreskin after the local dryness. 2, infant circumcision, parents should insist on pushing the foreskin up every day, it is advisable to push up gently and gradually, do not turn over at once with force to the end, it is best to shower, tub bath should be cleaned anus first before cleaning the urethra to avoid infection. 3, baby boys should not wear crotch pants, so that the genitals exposed. If you wear diapers, you should change them regularly. Adult men should pay attention to clean genitals before and after sex. 4. If the foreskin is broken and red when it is turned over, erythromycin ointment can be applied to the broken area. Infants and children with inflammation should not use potassium permanganate solution to sit in the bath, so as not to deploy difficult to grasp the concentration, making the child’s scrotal skin and even the urethra corroded. Even when adults use potassium permanganate solution for local cleaning, they should pay attention to the concentration and avoid too high concentration to avoid local burns.