- Hay-Ison criteria: The IUSTI/WHO 2018 guidelines recommend using the Hay-Ison criteria during microscopic evaluation for the diagnosis of BV
Molecular-based test
- A molecular-based test using vaginal swabs collected by clinicians or patients can accurately diagnose most common bacterial, fungal, and protozoan causes of vaginitis, including BV
In conclusion, the diagnosis of BV can be made using clinical criteria such as Amsel's criteria, laboratory criteria such as the Nugent scoring system or Hay-Ison criteria, or a molecular-based test. The choice of diagnostic method may depend on the resources available and the specific clinical context.