The difference between true and false circumcision is whether the glans is completely wrapped by the foreskin after erection. If the glans is completely wrapped by the foreskin, it can be recognized as true phimosis; if the glans can be exposed, it indicates the existence of false phimosis. 1. Genuine circumcision: Whether the male penis is in the state of erection or in the state of weakness, the glans is wrapped by the foreskin, and the glans cannot be exposed, but the foreskin can be turned up, indicating the existence of genuine circumcision. 2. False circumcision: when the male penis is in a soft state, the glans is wrapped by the foreskin, but after the penis is erected, part of the glans is exposed and the foreskin can be turned up, which indicates the existence of false circumcision. Men who are circumcised should often turn up the foreskin, clean the inside of the foreskin, and keep the perineum clean and dry, to avoid recurring circumcision and glansitis. If you feel unwell, you should go to the hospital and consult a physician.