Terbinafine is effective against fungal-induced glans circumcision. Terbinafine is a broad-spectrum antifungal drug, so it needs to be judged according to the type of pathogenic microorganisms that cause glans circumcision, and bacteria-induced glans circumcision is not effective. The main cause of glans phimosis is bacteria and fungi, the key to treating glans phimosis is to determine what pathogens cause glans phimosis. If the surface of the glans is covered with white discharge, the probability is that it is caused by a fungal infection. A smear examination of the discharge can clarify the type of pathogen, and local use of terbinafine may be useful. Patients with glans phimosis should pay attention to keeping the affected area hygienic and avoiding irritation. If there is a prepuce, circumcision should be performed as soon as possible after the recovery of glans phimosis, and circumcision can effectively reduce the incidence of glans phimosis. The use of terbinafine should be used under the guidance of a doctor, avoid self-medication.