ABSTRACT
Late-preterm infants are the neonates whose gestational ages are from 34+(0-7) to 36+(67)weeks.Although they look like term infants,their organs are immature.So the incidence of complication and mortality in late-preterm infants are higher than those of term infants.Now people have gradually realized that we could reduce the incidence of late-premature birth by exploring the pathogenesis of late-premature birth and trying to intervene it.People also have found that some maternal risk factors during pregnancy lead to latepreterm birth easily,such as pregnancy hypertension,pregnancy anemia,premature rupture of membranes,etc.These factors have significant impacts on the growth and development of late-preterm infants after birth.This paper is to review the progress of some maternal factors of late-preterm infants and their short and long term risks.