Usually, you need to go to a regular hospital and do penile nerve electrophysiology examination under the correct operation of the doctor. Usually, when the patient enters the examination room, he needs to relax his body as much as possible and then lie flat on the bed, after which the doctor will put the electrode sheet on the surface of the glans and penis, connect the anode at the distal end of the penis of about 2 centimeters, turn on the power supply to give a certain amount of electrical stimulation, and then observe the dorsal nerve map of the penis and the degree of erection, etc. The doctor will also observe the penis and the degree of erection. As it requires a formal instrument, as well as a doctor to operate, it is recommended that patients go to a regular hospital for examination. This examination can test the sensitive point of the dorsal nerve of the penis, when the patient’s sensitivity of the penis is in abnormal, usually lead to premature ejaculation phenomenon in sexual life. In addition, it is recommended that patients should develop good habits in their daily life and go to the hospital in time if they feel uncomfortable.