Whether or not to take hypoglycemic drugs for low blood sugar before meal eating depends on the specific level of blood sugar and the blood sugar 2 hours after meal. Low blood glucose before meals indicates that the last meal eating less, or taking a large dose of drugs, resulting in low blood sugar before the next meal, such as blood glucose significantly lower, hypoglycemia occurred can be temporarily suspended once. If it is on the low side, the dose of hypoglycemic drugs can be reduced; if the blood glucose before meals is low and the blood glucose 2 hours after meals is high, it is still necessary to orally take drugs mainly for lowering postprandial blood glucose to avoid fluctuation of blood glucose. Hypoglycemia may occur frequently in the process of glucose-lowering treatment for diabetes, and when hypoglycemia occurs, we should pay attention to find the cause, timely supplementation of food to prevent severe hypoglycemia from occurring, and make timely adjustments to the food or medication. It is recommended that patients go to the hospital in time and be treated under the guidance of professional physicians.