The foreskin is too long, which means that the penis head is completely wrapped by the foreskin, but the foreskin can be opened by hand and the penis head is completely exposed. This condition is called redundant prepuce. If the foreskin is too long, it should be differentiated from phimosis, which means that the penis head is completely wrapped by the foreskin, and the opening of the foreskin is relatively narrow, so it is impossible to open the foreskin by hand and completely expose the penis head. This condition is called phimosis, which can be divided into congenital phimosis and acquired phimosis.

For patients with long foreskin, if the foreskin opening is wide and easy to turn up, surgery is not required, but attention should be paid to opening and cleaning frequently to keep the penis head and foreskin clean locally. For patients with small prepuce opening, recurrent gonadal dermatitis or incarcerated prepuce, circumcision should be performed in time.