Men with small genitals but normal sexual function are able to have intercourse, but having small genitals may have an effect on sexual life. Men with small genitals can have intercourse if they have normal erections. However, if there is also erectile dysfunction or premature ejaculation or other sexual abnormalities, intercourse may be affected. In addition, the genitals are too small, may not be able to meet the two sides of the need for sexual life, sexual life time is too short, or the woman can not have an orgasm, etc., easy to affect the mood of both sides, and even affect the normal state of mind. If the genitals are too small, affecting sexual function, it is recommended to go to the hospital urology department for examination and treatment.