High blood glucose 2 hours after meal during pregnancy may be restored after delivery, but it is not absolute, patients with diabetes themselves will not return to normal blood glucose after delivery. There is no diabetes before pregnancy, during pregnancy 2 hours after meal blood glucose is greater than 8.5 mmol / L for gestational diabetes, after delivery with the weight reduction and delivery of the fetus, pregnant women’s demand for blood glucose will be significantly reduced, most of the 6 to 12 weeks after delivery can return to normal, a small number of 6 months after delivery to return to normal. Diabetes is a lifelong disease. Women who have diabetes before pregnancy cannot return their blood sugar to normal after giving birth and need to take medication to keep their blood sugar within the normal range. Therefore, it is important to continue to monitor your blood glucose after giving birth to see if it is within the normal range and to treat any abnormalities promptly.