Gestational diabetes refers to the abnormal glucose tolerance that occurs during pregnancy, typically characterized by mild, asymptomatic elevated blood sugar levels without obvious symptoms such as dry mouth, excessive thirst, and frequent urination. However, when blood sugar levels are high, symptoms typical of diabetes such as dry mouth, excessive thirst, and frequent urination may occur. If excessive amniotic fluid, a large fetus, or recurrent infections of the external genitalia occur during pregnancy, it is important to be vigilant for the presence of diabetes. It is generally recommended that patients undergo the OGTT (Oral Glucose Tolerance Test) during the mid-stage of pregnancy to confirm whether gestational diabetes is present. Women's blood sugar levels generally return to normal after childbirth, but the risk of developing diabetes later increases significantly. Therefore, patients with gestational diabetes should be screened for diabetes 6-12 weeks postpartum and monitored over the long term.