What factors can trigger a preterm labor?
While the exact causes of preterm labor remain unclear, some risk factors include: smoking; uterine and vaginal infections; structural abnormalities of the uterus and/or cervix; multiple birth (twin/triplets), and underlying conditions such as pre-eclampsia, diabetes or placenta praevia (a type of low-lying placenta).
Author: Nikki Wallis
First answered: 27 Oct 2014
Last reviewed: 19 May 2018
Rating: 4.2/5 Votes: 151