Balanitis is a common disease. If a man suffers from this disease and wants to be cured, the cause of balanitis must be clarified first. The common causes of balanitis are mainly inflammation caused by long foreskin, dirt under foreskin, and dirt stimulating glans. It is suggested that patients should clean their foreskin regularly. If the patient's foreskin has phimosis and the symptoms recur, it is recommended to perform circumcision for radical treatment. In addition, balanitis may also be caused by bacterial infection. It is suggested that patients take anti-inflammatory drugs for anti-infection treatment to achieve cure. It is also possible that the patient is infected with fungi. It is suggested that patients take antifungal drugs orally and apply antifungal ointment on the surface of glans penis. It may also be infected with gonococcus and other bacteria, which is an infectious disease. It is recommended that patients go to the andrology clinic in time.