Usually, circumcision focuses on cutting the part of the foreskin that covers the front of the glans, exposing the glans coronalis. The foreskin is a fold of skin outside the head of the penis, which usually protects the head of the penis. Hyperemesis, which means that the foreskin usually covers the head of the penis, if there is a hyperemesis, it will cause a large amount of accumulation of prepuce scale, which will cause bacterial reproduction, inducing glans inflammation, and in serious cases, leading to urinary tract infections, so it is recommended to do circumcision if there is a hyperemesis. Circumcision is a minimally invasive surgery, less invasive, faster recovery, after the circumcision, pay attention to rest, avoid strenuous exercise, avoid sexual stimulation, but also pay attention to a reasonable diet, maintain hygiene, take medication on time, regular review.