Salt water itself has antiseptic properties, and washing the vulva with salt water serves to inhibit bacterial growth, kill bacteria, and provide a cleansing effect. However, it is also recommended not to use salt water to wash the vulva in the absence of any clinical symptoms, as long as warm water is used to wash the vulva. If there is an uncomfortable situation, it is best to go to the hospital to do the appropriate examination, and then give certain drugs for treatment, do not unauthorized use of salt water cleaning in order to avoid delaying the condition. For example, once the vulva itching, accompanied by increased vaginal discharge, it is difficult to know which pathogenic bacteria infection caused by this clinical symptoms. Only through laboratory tests can we know the infectious agent, so that we can target the medication, so as not to delay the condition, but also to achieve a better treatment in the clinic.