The difference between prepuce and foreskin mostly refers to the difference between prepuce and circumcision. Prepuce refers to the inability to reveal the urethral opening or glans and to expose the coronal sulcus when the foreskin is pulled or flipped upward under normal conditions. The main harm is that it is easy to accumulate foreskin scales and induce glans vulgaris, so children with long foreskin need not undergo premature circumcision as long as they pay attention to frequent cleaning to ensure that the glans is dry and clean and the urinary tract is dry and clean. The first thing you need to do is to have a circumcision.