The NUGENT score is an indicator to check the vaginal microecology. The score is based on the number of miscellaneous bacteria in the vagina; the absence of miscellaneous bacteria is zero, which means no bacterial vaginitis. The normal range is 0-3 points. A score higher than three points is considered bacterial vaginitis and prompt treatment is recommended. Bacterial vaginitis is a syndrome caused by a mixture of vaginal Gatnerella and anaerobic bacteria, resulting in an imbalance in the micro-ecological balance in the vagina, causing increased vaginal discharge, leucorrhoea with a fishy odor, and itching and burning of the vulva. The main causes of infection include indirect contact infection, which can be caused by contact with toilet seats in public toilets contaminated with bacteria, as well as bath tubs, baths, chairs, towels, and the use of unclean toilet paper. Sexual contact transmission is a cause of morbidity, and at least 10% of men with symptomatic female partners have bacterial UTIs. Taking large amounts of antibiotics can change the microenvironment of the vagina, and disease-causing bacteria and pathogens multiply, leading to episodes of bacterial vaginitis. Women often use medicinal lotions to irrigate the vagina in order to maintain hygiene, which can easily destroy the vaginal acid-base environment and make it easy to contract bacterial vaginitis.