Normal leucorrhea should be white and thin or egg-white, with no obvious odor. The amount may be more or less, and it is usually not used as a criterion to determine whether it is normal or not. Because leukorrhea is composed of vaginal discharge, cervical discharge, etc., it is more prone to inflammatory infections. When there is a certain abnormality of vaginal discharge, such as change of status, obvious yellowing, tofu sludge-like, etc. It is also accompanied by significant vaginal itching or odor, which most likely belongs to abnormal leukorrhea, and the more common cause is vaginal inflammation. The more common vaginitis, mainly bacterial vaginitis, mycotic vaginitis and trichomoniasis, need to be determined by routine leucorrhea examination. It can be effectively improved by using topical medications for symptomatic treatment, and by paying attention to personal hygiene, bathing and changing underwear regularly.