Normally, even when the penis is weak, the glans should be exposed and there should not be foreskin covering the glans, so it is normal for the foreskin not to cover the glans. Some people may have the foreskin completely cover the glans when the penis is weak, resulting in the glans not being exposed or needing to flip the foreskin by hand to make the glans exposed, which is considered circumcision. In some cases, even if the foreskin is flipped by hand, the glans is not fully exposed, and the patient is circumcised. Usually, if a patient is circumcised or circumcised, which repeatedly leads to glans circumcision, surgery is recommended to remove the overgrown foreskin. Because the glans is wrapped in the foreskin, it is easy to form a large amount of foreskin scale between the glans and the foreskin, which leads to bacterial infection. So having the glans exposed is actually good for keeping the glans clean and dry, preventing the occurrence of glans circumcision and contributing to male reproductive health.