胎龄少于38周便“迫不及待”地离开母体,呱呱坠地的新生儿称之为早产儿。早产儿器官形态和功能均尚未成熟,亦称为未成熟儿,多为低体重儿。胎龄愈小,体重愈低,健康问题愈多。也有胎龄38周以上,体重却在2500克以下的新生儿,称之为低体重儿。 孕妇的急慢性疾病(呼吸道感染、贫血、肝炎、 The gestational age of less than 38 weeks then “can not wait” to leave the mother, newborn baby is called premature birth. Premature children organ morphology and function are not yet mature, also known as immature children, mostly low birth weight children. The smaller the gestational age, the lower the body weight, the more health problems. There are also more than 38 weeks gestational age, weight is 2500 grams in the newborn, called low birth weight children. Acute and chronic diseases of pregnant women (respiratory infections, anemia, hepatitis,