Huang S, et al. - This cross-sectional cohort study planned to examine whether maternal lead (Pb) exposure was correlated with premature rupture of membranes (PROM) and preterm PROM via analyzing data of 7290 pregnant women from the Healthy Baby Cohort in Wuhan, China, during 2012–2014. A positive relationship was found between maternal urinary Pb and the risk of PROM, supporting that maternal exposure to Pb might be a potential risk factor for PROM. Researchers found that the association between Pb and PROM was more pronounced among primiparous women than multiparous women.