If a woman has her vaginal discharge checked for lactobacillus, it should be normal (++++). The higher the plus sign indicates that the vaginal environment is cleaner and less prone to bacterial infection vaginitis. Under normal circumstances, the vaginal environment is acidic and the concentration of lactobacillus should be high. If the routine leucorrhea test shows alkaline or a decrease in the number of lactobacillus plus, it means that the internal environment has been damaged and is prone to bacterial or mycobacterial infections caused by dysbiosis and vaginitis. To avoid damage to the internal environment of the vagina, we should pay attention to the cleanliness of the vulva and wash the vulva with warm water every night, and not to wash the vagina and vulva with liquid medicine so as to avoid damage to the internal environment that may cause dysbiosis and bacterial or mycotic vaginitis that may lead to cervicitis.