A common circumcision procedure for phimosis and prepuce is circumcision, which is the simple removal of the excess foreskin that covers the glans portion of the penis, thus allowing for better exposure of the glans. The length of the penis, on the other hand, depends on the length of the exposed dangling part of the penile corpus cavernosum, which is not involved in circumcision. Let’s use the analogy of cutting clothes, as if we take a pullover shirt with a high collar (circumcision) and change it into a low collar shirt (after circumcision), and the style of the clothes, no matter how it is cut, will not affect the height of the individual (meaning the length of the penis). From this perspective, circumcision does not affect the length of the penis. Then why do you feel that the length of the penis has become shorter after circumcision? There are several reasons to explain this: the post-operative pressure bandaging of the penis (to prevent bleeding and post-operative swelling), as well as the pain of the local wound, temporarily affects erection, making the regular blood-filled swelling of the penis on a daily basis reduced. In addition, because the foreskin has become shorter, there is some strain on the erection in the short term, which can make the erection seem inadequate. These reasons can make the penis look “shorter” for a short period of time after surgery. However, this is temporary and will improve as the surgery heals completely, the pain subsides, the wound heals, and the penis regains a natural, full erection. Circumcision will not affect the length of the penis.