The head of the child’s penis is wrapped by the foreskin and cannot be exposed, and when urinating jj first bulges and then urinates out of the urine, this is considered prepuce. It is easy to keep foreskin scale inside, which looks like small lumps of different sizes sticking to the head of the penis, and can be seen and felt through the foreskin, without pain. It is easy to inflammation, out of the white discharge, many parents call the white discharge thick fluid. You can locally clean, after the inflammation is good, you can locally release the adhesions, repeated infections can be hospitalized surgery, there is no limit to the age. If there is no infection, outpatient surgery can be performed at the age of 7 or 8 years.