Itchy lower body may be caused by gynecological diseases, possibly vulvovaginal inflammation causing itchy lower body or vulvar malnutrition, pubic lice, so it is necessary to go to the hospital for specific examination, routine leucorrhea examination and gynecological examination, according to the results of the examination to give symptomatic drugs is relatively good. If it is caused by trichomoniasis, you can give oral metronidazole tablets or vaginal metronidazole suppositories, etc. for treatment. If it is caused by pubic lice, shave the pubic hair, wash it with sulfur soap and apply Lindane ointment. If it is caused by vulvar malnutrition, you can give dextran ointment or skin relaxation ointment for local application to stop itching, so the lower body is always itchy according to different diseases, and take different medication to be effective.