How is bacterial vaginosis diagnosed?

Bacterial vaginosis, also known as nonspecific vaginitis, is caused by a mixed infection of vaginal Gardnerella and some hypoxic bacteria. It can be transmitted through sexual contact and has a higher incidence among people with promiscuous sexual relations. Let us now learn about the diagnostic criteria for bacterial vaginosis.

1. Vaginal discharge is grayish white, very sticky, even like paste, and uniform, but it is not purulent, and the amount is uncertain.

2. The secretion has a particularly high amine content, so it has a fishy smell. During sexual intercourse or after activity, the smell is often aggravated due to the release of amines. Adding 10% potassium hydroxide to the secretion can also release the amine smell.

3. Clue cells can be detected in wet smears of vaginal secretions.

4. The pH value in vaginal secretions increases, with a pH range of 5.0-5.5, while the normal pH is 4.5-4.7.

Among the above four criteria, the diagnosis can be confirmed if three or more are met, and the fourth is emphasized as a necessary diagnostic criterion.