To take insulin, you should monitor blood sugar frequently, and the number of times you monitor blood sugar should be decided according to your own blood sugar control level. If blood glucose is too high, monitor blood glucose 7 times a day, including blood glucose before 3 meals, 2 hours after 3 meals, and before going to bed. Note that blood glucose 2 hours after meals should be counted from the first bite, and adjust insulin dosage according to blood glucose under the guidance of doctors. If the blood glucose reaches the control standard for 2-3 days in a row, the number of monitoring can be reduced. You can choose one day a week for 7 times of blood glucose monitoring, or you can choose different time to measure 2-3 times a week. In addition to regular blood glucose monitoring, attention should also be paid to monitoring under special circumstances, such as when symptoms of hypoglycemia such as panic and excessive sweating occur, when the original diet and exercise routine is broken due to special reasons, and when the symptoms of self-perceived thirst and weakness are aggravated, blood glucose monitoring should be performed at any time.