The reasons for high sensitivity of the glans are: long foreskin or prepuce, excessive masturbation, individual differences, and urinary system diseases. 1. The long foreskin or prepuce will be due to the foreskin wrapped around the glans for a long time, so that the glans can not be exposed, the lack of external contact stimulation, thus leading to high sensitivity. 2. Too frequent masturbation will increase the sensitivity of the glans due to friction. And sensitivity increase will lead to increase masturbation to offset the increase in sensitivity, so the vicious circle will also aggravate glans sensitivity. 3. Each man’s glans sensitivity is not the same, so the time of sexual life is also different, but also by other factors, such as a long time without sex, or sex when excessive tension, anxiety, will lead to glans sensitivity increased. 4. Urological diseases, such as chronic prostatitis, periostitis, etc., due to the stimulation of inflammation will lead to fast ejaculation, glans sensitivity increased. It is recommended that the patient go to a regular hospital to clarify the cause of the problem and cooperate with the doctor’s treatment.