Circumcision does not make the penis bigger. Circumcision is a condition in which the foreskin is too long and cannot be turned down. It is easy to lead to phimosis as well as sexual dysfunction. Circumcision is to improve the phenomenon of phimosis, which is caused by the long foreskin and the foreskin at the glans. In the surgical treatment of phimosis, the excess foreskin is cut off and sutured with special cosmetic sutures, so that the glans is exposed, thus improving the hygiene of the penis, but there is no change in the length of the penis after the surgery. In conclusion, circumcision is a method of removing foreskin scales, improving penile hygiene and preventing glansitis, but it has no effect on the length of the penis.