If the penis is in a weak state, the penis head is completely wrapped by the foreskin, and the penis head cannot be exposed during erection, but it can be opened by hand to expose the penis head. This situation is called excessive foreskin. If the foreskin is too long, it should be differentiated from phimosis, which means that the penis is in a weak state, the penis head is completely wrapped by the foreskin, the foreskin mouth is narrow, and it is impossible to open the foreskin by hand, and the penis head is completely exposed.

The phimosis can be divided into congenital phimosis and acquired phimosis. For patients with long foreskin, if the foreskin mouth is wide and easy to turn up, surgery is not needed, but it should be cleaned separately frequently to keep local cleanliness. It is suggested that patients with small prepuce opening and recurrent balanitis should be circumcised after local infection control.