Lactobacillus is the only beneficial bacterium in the vagina, which can balance the vaginal micro-ecological environment and strengthen the vaginal resistance. Women should pay attention to keep their vulva clean and hygienic. If there is no itchy vulva or increased discharge or odor, they do not need vaginal irrigation and medication, as vaginal irrigation and medication will disrupt the micro-ecological balance of the vagina and cause a decrease in Lactobacillus, which will easily cause vaginal inflammation. It is important for women to keep their vulva clean and hygienic and to strengthen their resistance to inflammatory infections.