Abstract

Objective: The present study was conducted aimed to investigating predicting preterm labor based on vaginal PH and cervical length at 22-24 weeks of gestation. Material and Method: This cross-sectional study was done on 168 pregnant women between 22 and 24 weeks of pregnancy. Cervical length and vaginal PH was measured. The patients were followed up till delivery and the gestational age were recorded. Data were collected using information forms and analyzed using SPSS version 21. Results: In this study mean age was 28.86 +/- 6 years. Mean cervical length and vaginal PH were significantly lower and higher in women with preterm labor than women with term labor. Conclusions: This study showed vaginal PH and cervical length are the preterm labor predictors and the risk of preterm labor in short cervix is higher than alkaline vagina.