Every mature woman during menstruation, motherhood, ovulation and other special periods, the reproductive tract will inevitably be invaded by pathogenic microorganisms. But not every woman has gynecological problems when invaded by pathogenic microorganisms. That is because healthy women have a large amount of Lactobacillus in the vagina while maintaining a balanced vaginal environment. They have good vaginal self-purification and immunity, which can inhibit the reproduction of pathogenic microorganisms and prevent the occurrence of gynecological problems. Only when the vaginal environment is destroyed, vaginal self-purification capacity declines, mucosal tissue is damaged, and invasive pathogenic microorganisms multiply, resulting in toxin retention and continuous infection, causing repeated gynecological problems and difficult to cure.