The three-year-old child may be physiological phimosis, you can continue to observe to the age of 6, if there is still phimosis can be treated by medication, manipulation and other methods of treatment, if the conservative treatment is ineffective, the age of 14 years old still have phimosis, it can be treated by surgery. Three-year-old child’s prepuce may be physiological prepuce, physiological prepuce is a normal physiological phenomenon, this is due to the fetus in the process of development, the inner plate of the foreskin and the head of the penis fused with each other, with the child’s age, the physiological prepuce usually can be in the androgenic hormone, penile growth and development, epithelial cell keratinization, and other factors of the role of the disappearance of their own. If the child continues to be observed until the age of six, the child still has a prepuce, then it can be treated by external application of mometasone ointment, manipulation of the foreskin dilation, dilator expansion, etc.; if the child still has a prepuce at the age of 13, 14 years old after conservative treatment, then it can be treated by circumcision and other surgical procedures. If a three-year-old child is circumcised, parents should bring the child to a regular hospital and follow the doctor’s instructions.