Positive clue cells are caused by Gardnerella vaginalis infection, which is an important basis for the diagnosis of bacterial vaginitis, and anti-anaerobic treatment is often required to treat bacterial vaginitis. Bacterial vaginitis is often manifested as an increase in leukorrhea, leukorrhea secretions are obvious fishy odor, often accompanied by vulvar itching and other discomforts, if clues cells are detected in the vaginal secretions, it can be diagnosed as bacterial vaginitis, and anti-anaerobic bacterial treatment can be given in general, and often choose to incorporate metronidazole suppositories intravaginally or oral metronidazole tablets for treatment. When women treat bacterial vaginitis, they should not use soap or alkaline liquid douche, otherwise the vaginal odor is more pronounced, and at the same time, it is necessary to prevent cross-infection between husband and wife, so the man also needs oral metronidazole tablets for treatment if he is also an infected person. Women who have increased leukorrhea, itching and other discomforts, should consult a doctor in a timely manner, do not be negligent, so as not to delay the condition.