What do I need to pay attention to before checking my blood sugar? Diabetes is known as the “undead cancer”, which shows how terrible it is! Therefore, it is important to pay attention to blood glucose monitoring in general. Before checking blood glucose, you should pay special attention to the following matters, so that you can get the best results. Before checking blood glucose, we should pay attention to the following matters: 1. When checking blood glucose on an empty stomach, we should ensure that we fast for 8 to 12 hours from the previous day’s dinner to the next morning, so the best time to check is 6 to 7 am. The “super fasting” state after 10 am will also affect the reliability of the test results. 2, exclude other chronic pathologies other than diabetes, not all elevated blood sugar is diabetes. Patients suffering from liver diseases such as hepatitis, cirrhosis, certain stressful conditions, starvation and chronic diseases, taking some drugs affecting glucose metabolism such as oral contraceptives and aspirin, as well as some endocrine diseases, all these factors may bring about elevated blood sugar. 3.Ensure sufficient sleep, prevent lack of sleep, avoid eating too much the day before, or measuring fasting blood sugar before emotional excitement, too strenuous activities, etc., because all these factors can lead to the increase of blood sugar. 4. When checking blood glucose 2 hours after meal, eat according to the usual diet, take glucose-lowering drugs as usual before meal, and draw blood for 2 hours from the first bite of meal. 5.Before checking blood sugar, do not do strenuous exercise, do not smoke, do not drink alcohol, do not drink strong tea, coffee and other stimulating drinks. 6.Before and during the blood sugar check, learn to control your emotions. Mood swings such as anxiety, tension and anger can excite the sympathetic nerves and cause blood sugar to rise. 7.Patients who are receiving insulin injection therapy should be more diligent in blood glucose testing, checking fasting and postprandial blood glucose at least twice a week, as well as bedtime blood glucose. After the condition is stable, the test can be changed to once a week, and the monitoring time can also be extended according to the condition.