Do not douche your vagina! There are many pathogens in the vagina that form the normal microbiota of the vagina: 1. Gram-positive aerobic bacteria and parthenogenic anaerobic bacteria such as Lactobacillus. 2. Gram-negative aerobic bacteria and part-time anaerobic bacteria, such as Escherichia coli. 3.Specialized anaerobic bacteria, such as digestive cocci, etc. 4.Mycoplasma and Pseudomonas. Although there are many kinds of bacteria in the normal vagina, the ecological balance between the vagina and these flora can be non-pathogenic. Lactobacillus, estrogen and vaginal pH play an important role in maintaining the ecological balance of the vagina. Under physiological conditions, Lactobacillus vaginalis converts simple sugars into lactic acid to maintain a normal acidic vaginal environment.