Positive hydrogen peroxide indicates bacterial inflammation and positive leukocyte esterase indicates the presence of leukocytes in the specimen tested, indicating the presence of inflammation. The presence of both is considered to be vaginitis or cervicitis, and further examination is needed as to what causative organisms are causing the vaginitis. Leukorrhea is a mixture of vaginal mucosal exudate, cervical glands, endometrial glandular secretion and exfoliated cells, which is mainly related to estrogen. Under normal circumstances, the leucorrhea is white and thin or egg white like, sticky, moderate amount, no obvious odor, which is physiological leucorrhea. If the leucorrhea increases abnormally, the color changes, such as yellow, off-white, etc.; the shape is pus-like, bean curd-like, etc., accompanied by obvious odor, such as fishy smell, ammonia smell, etc., belong to pathological leucorrhea. Experienced clinicians can initially determine the type of vaginal inflammation based only on the visual manifestation of some pathological leucorrhea. For example, grayish yellow or yellowish white foamy thin leucorrhea suggests trichomoniasis; curd lumpy or bean curd-like leucorrhea suggests vulvovaginal candida vaginitis; grayish white homogeneous fishy smelling leucorrhea suggests bacterial vaginitis. The abnormalities in the routine leucorrhoea examination need to be combined with clinical analysis to take symptomatic treatment.