Urinary tract infections caused by vaginitis are usually seen in trichomoniasis. Trichomonas easily invades not only the vagina, but also the urethra, paraurethral glands and vestibular glands of women, and when it invades the urethra, it causes frequent, painful urination and sometimes hematuria. If the white belt test is for trichomoniasis, the urinary tract infection should be treated at the same time as the trichomoniasis, and can be treated with levofloxacin under the guidance of a doctor. In addition, patients with mycosis vaginalis may also suffer from painful urination, caused by urine irritation to the vulva, because mycosis vaginalis tends to cause itching of the vulva, which is caused by edema in the process of scratching.