The length of adult male penis is about 8.8cm in flaccid state and 12.9cm when erect. The size of penis varies from person to person and there is no absolute standard.
Male penis is a sex organ, with the function of sexual intercourse, the length of the penis refers to the distance from the root of the penis to the external opening of the urethra, adult males in the flaccid state of about 8.8cm, when erect, the volume and hardness will also increase, the length can be increased, about 12.9cm or so.
If it appears that the penis has not reached the normal and the erection does not affect sexual life, no special treatment can be required.
If the length of the patient does not reach the standard and can not have a normal sex life after erection, it is necessary to go to the hospital in time to identify the cause of the disease and take symptomatic treatment.