It is also possible to wash the glans with cool water, which generally does not produce any bad effects on the glans, especially for patients with long foreskin, who often turn up the foreskin for cleaning, so that the foreskin scale can be cleaned off in time, which can avoid the stimulation of the foreskin and glans by the foreskin scale, so as not to induce the occurrence of foreskin glansitis. It is generally recommended that patients frequently wash with warm water, which is better than cool water, which tends to produce discomfort to the skin. Frequent cleaning of foreskin and glans can not only keep local clean and dry, prevent the occurrence of foreskin glansitis, but also reduce the incidence of penile cancer, so it is very important for adolescent men with long foreskin to pay attention.