血糖低于正常值称为低血糖。葡萄糖是中枢神经系统的主要能量来源,新生儿肝糖原贮存量很少,极易发生低血糖症。反复发作或持续时间过长的低血糖可造成不可逆性脑细胞损害,导致死亡或脑组织功能障碍,产生后遗症。据国外资料统计:早产儿、低体重儿、未成熟儿低血糖发生率高达67％,足月产为25％,而症状性低血糖发生率则为0.2％～5％。该病所表现的症状无特征性,与 Lower than normal blood glucose is called hypoglycemia. Glucose is the main source of energy in the central nervous system, neonatal glycogen storage is very small, prone to hypoglycemia. Hypoglycaemia that is recurrent or prolonged can cause irreversible brain cell damage, leading to death or brain dysfunction resulting in sequelae. According to foreign statistics: premature children, low birth weight infants, immature children with hypoglycemia as high as 67%, 25% of full-term, while the incidence of symptomatic hypoglycemia was 0.2% to 5%. Symptoms of the disease showed no characteristic, and