Hypoglycemia is generally defined as blood sugar <2.8mmol/L for ordinary people and <3.9mmol/L for diabetic patients. when hypoglycemia occurs, replenish sugar can eat food or liquid with high sugar content, and in serious cases, glucose solution can be infused and other ways to raise blood sugar, depending on the severity of hypoglycemia. 1. if the patient is conscious, immediately eat some candy, snacks, cookies or fruits with high sugar content, such as banana, pineapple honey, mango, honeydew melon, etc.; you can also drink some sugar-containing drinks, glucose water, honey water. If the discomfort is not relieved after 10 minutes after consuming the above-mentioned foods, it means that the blood sugar has not risen to the normal level, so you can eat some more until the blood sugar returns to normal. If the symptoms cannot be relieved by dietary supplementation, seek medical examination immediately; 2. If hypoglycemic coma occurs and the patient is unconscious, do not give the patient any supplementary food containing sugar at this time, because the patient is unconscious at this time, if the patient is force-fed sugar water, it is easy to choke or suffocate and endanger life. The patient should be quickly taken to the hospital and given intravenous glucose or adrenocorticotropic hormone and glucose-raising hormone to make the blood sugar rise rapidly. Patients with hypoglycemia may have symptoms of sympathetic excitement, such as panic, sweating, weakness of limbs, cold sweat mainly, and hunger, and should pay high attention to whether hypoglycemia has occurred. Some patients with carotid artery stenosis or due to insufficient blood supply to the vertebral arteries are also prone to panic and weakness, but these conditions are not relieved by glucose supplementation. If possible, it is better to measure blood glucose first and then supplement food or supplement food and measure blood glucose at the same time. If there is no glucose meter, don't wait for the glucose meter, you should supplement food first and then check whether there is a cause of hypoglycemia to avoid delaying resuscitation while waiting for the glucose meter.