Utility of Vaginal pH as Point of Care Test for Detection of Bacterial Vaginosis

Authors : Shridevi Metgud, Spurthi Gangigute, Sharada Metgud

DOI : 10.47799/pimr.1001.06

Volume : 10

Issue : 1

Year : 2022

Page No : 35-39

Abstract Background & objectives: Bacterial vaginosis (BV) is a Reproductive tract infection (RTI) among young sexually active women with high prevalence. It is associated with complications related to pregnancy and an increased risk of acquiring STDs. This poses a need for cost-effective detection of BV in low resource settings. Hence, we propose to study the utility of vaginal pH determination for the detection of BV. Material & Methods: This is a single center, 1 year cross-sectional study. Swabs were collected from 250 non-pregnant women attending the out-patient department of Obstetrics and Gynecology with vaginal discharge as a predominant symptom with or without backache and abdominal pain. Vaginal pH determination, Gram stain, wet mount, Whiff test, and Amsel’s criteria were used for BV detection. Results: 250 study participants with vaginal discharge suggestive of BV were analyzed. Vaginal pH was significantly higher in women with BV with the mean pH being 6.2. Vaginal pH >4.5 had a sensitivity of 85% and specificity of 66% to detect BV. The Whiff test had the least sensitivity. Clue cells and Amsel’s criteria of ≥ 3 were significant for BV. A combination of pH and Whiff test performed better had high sensitivity and specificity. Conclusions: A combination of pH determination and the Whiff test serves as a low-cost alternative in resource-poor settings for detection of BV. Though Clue cells and Amsel’s criteria ≥ 3 were most sensitive and specific, they cannot be used in low resource settings. Vaginal pH alone can be used to detect BV in areas of low prevalence.


Citation Data


Related Articles