Penile infections can be caused by unclean personal hygiene and unclean sex. Penile infections can be categorized into epidermal infections and internal penile infections. Most epidermal penile infections are foreskin and glans infections, folliculitis of the skin and so on. Most of these infections are due to inadequate cleaning, such as not cleaning the foreskin and glans, which triggers pathogenic bacteria infection. For this part of the patient, you need to do a good job in the daily cleaning, change underwear, and use medication, such as clotrimazole cream. Another is due to unclean sexual intercourse, may cause germs from the urethral opening retrograde into the penis, and then appear such as urethritis and other infectious diseases. This type of patient needs to do a good job of daily cleaning, while avoiding sexual intercourse, and follow the doctor’s instructions to use antibiotics for treatment. Patients with penile infections are advised to go to the hospital in a timely manner, to clarify the cause of the disease and then treated under the guidance of the doctor.