The need for hospitalization at 39 weeks of pregnancy for pregnant women with high blood glucose depends on the blood glucose control, the presence of complications and other decisions, and cannot be generalized.1. Hospitalization is required: If the pregnant woman is a combined diabetic pregnancy, or if her blood glucose has been high during pregnancy and requires insulin, and if the glucose control of gestational diabetes is poor, she needs to be hospitalized. Because abnormal blood sugar may cause some acute complications, such as diabetic ketoacidosis, intrauterine hypoxia, placental function decline, fetal death, postpartum infection, neonatal hypoglycemia, neonatal diabetes, etc., so the pregnant woman must be hospitalized, and under the guidance of the doctor to control blood sugar, as appropriate, induction of labor, if necessary, timely cesarean section to terminate the pregnancy, the newborn needs to measure the blood sugar level after birth; 2. No hospitalization: If the pregnant woman has gestational diabetes, no insulin is applied during pregnancy, good blood sugar control by diet and exercise alone and no other comorbidities, she can choose to reduce the intake of blood sugar at home by low sugar, low carbohydrate and high protein diet, combined with increased exercise such as doing yoga, slow walking, etc. to consume blood sugar and reduce the level of sugar in the blood, while waiting for delivery, no hospitalization is necessary.