早产是围产期婴儿死亡的首要原因。在围产儿死亡中,早产儿占半数,存活者约有3％留有智力障碍,或神经系统的后遗症。因此,如何防治早产便成为围产医学的重要课题。笔者在临床实践中收集了两医院1987年1月～1990年12月共9485例产妇,对其中311例早产的高危因素进行综合分析并对早产的防治作了讨论。 Premature delivery is the leading cause of death in perinatal infants. In perinatal deaths, half of preterm children and about 3% of survivors have mental retardation or neurological sequelae. Therefore, how to prevent premature birth will become an important issue of perinatal medicine. In clinical practice, the author collected a total of 9485 mothers from January 1987 to December 1990 in two hospitals, and analyzed the risk factors of 311 preterm births and discussed the prevention and treatment of preterm birth.