Diagnosis criteria
The diagnosis of BV is based on the Nugent score. Under the microscope (1000×), a quantitative score was made according to the number of the large Gram-staining positive bacilli, small Gram-staining variable bacilli, and Gram-stained variable curved bacilli, and the 7-10 score was divided into BV. Take the average of 10 high magnification fields under the microscope to score. The diagnostic criteria of AV referred to Donder’s score(9). A quantitative score was made according to the proportion of lactobacilli, the number of white blood cells, the number of toxic white blood cells, the type of background bacteria, and the number of parabasal epithelial cells under the wet film microscope. The score ≥3 was divided into AV. The diagnosis of VVC is based on the hyphae and spore seen on the wet film and gram staining smear under microscope. TV diagnosis relies on normal saline wet film to see activeTrichomonas vaginalis .
All pregnant women are aware of the vaginal discharge examination results and treated with AV, BV, TV, and VVC in accordance with the latest international guidelines and provided with health guidance and follow-up visits before delivery after treatment(1, 10).