妊娠期糖尿病(gestational diabetes mellitus,GDM)是指妊娠期间首次发生或发现的糖代谢异常,包括一部分妊娠前已患有糖尿病但未曾获得诊断、仅在此次孕期被发现的糖尿病患者。GDM多发生在妊娠晚期,大多数患者无任何症状和体征,且空腹血糖多正常。未经治疗的GDM的危害是巨大的, Gestational diabetes mellitus (gestational diabetes mellitus, GDM) refers to the first occurrence or found during pregnancy, abnormal glucose metabolism, including some have been diagnosed with diabetes before pregnancy but have not been diagnosed, only found during this period of diabetes. GDM occurred in the third trimester of pregnancy, most patients without any symptoms and signs, and more normal fasting blood glucose. The harm of untreated GDM is enormous,