Tip: The key is whether you need foreskin surgery. As long as the foreskin can be opened smoothly by hand after erection and the glans penis is completely exposed, there is no need for surgery. Pay attention to hygiene and wash scales frequently, preferably once a day. However, if the foreskin is still wrapped on the glans after erection and cannot be opened by hand, it is phimosis and surgery must be performed to remove the foreskin.