Lower body itchy urine may be due to urethritis, vulvitis, vulvar eczema and other reasons. 1. Urethritis: Urethritis caused by pathogenic bacteria invading the urethra will cause congestion and swelling of the urethra, resulting in frequent urination and urgency of urination, which may lead to the symptoms of itchy lower body and excessive urination. 2. Vulvovaginitis: the soft tissue of vulvar skin is infected by pathogenic bacteria, which can also cause congestion and swelling of the vulva, and may lead to symptoms of itchy lower body and excessive urination. 3. Vulvar eczema: Inflammatory reaction of the vulva caused by internal and external stimuli may lead to itchy urination and may be accompanied by oozing tendency. Itchy urine, there may be other reasons, you need to go to the hospital in time to check, clear cause of the treatment prescribed by the doctor.