The dominant bacterium Gram-positive bacilli g+b refers to the predominantly Gram-positive bacilli in the patient’s examination specimen, which are the dominant flora. Gram-positive bacilli g+b can be used to characterize the vaginal microecology and the status of the vaginal flora during vaginal discharge examination. Normally, the vagina is dominated by gram-negative bacilli, and if a patient’s leukorrhea test results are dominated by gram-positive bacilli, this indicates bacterial vaginitis. Bacterial vaginitis is one of the common vaginal infections, referring to a mixed infection caused by an imbalance of the normal flora in the vagina. Clinical symptoms are mainly increased vaginal discharge, grayish-white, thin with a fishy odor, and some patients are asymptomatic. Bacterial vaginitis is mainly treated with anti-anaerobic drugs, which can be used under the guidance of a doctor, such as metronidazole. It is recommended that the patient according to the results of the examination, actively cooperate with the doctor’s treatment, drugs need to be used under the guidance of the doctor.