Gestational diabetes refers to diabetes that appears or is diagnosed during pregnancy, or any degree of glucose tolerance abnormality, which is classified as an independent type of diabetes. Diabetes combined with pregnancy or gestational diabetes can pose serious risks to the health of both mother and child. Before national screening of blood sugar levels during pregnancy was initiated, the detection rate of gestational diabetes was not very high, only 0.24%. However, with the widespread implementation of blood sugar screening during pregnancy, the current incidence rate of gestational diabetes is approximately 1% to 5%.