Patients with high blood sugar will lose weight and lead to wasting, mainly because in the case of high blood sugar, insulin secretion is insufficient, the body can not make full use of glucose, it will accelerate the decomposition of fat and protein to replenish energy and heat, which will lead to a large consumption of carbohydrates, fat and protein in the body, plus the loss of water caused by high blood sugar, the patient will experience weight loss and Patients will lose weight and body weight, and serious patients can lose tens of pounds. At the same time, it is often accompanied by fatigue, weakness, lack of energy, drinking, urinating and eating, and the higher the patient’s blood sugar, the more serious the disease is, and the more obvious the wasting will be. As the patient’s blood sugar decreases, the wasting symptoms will also improve.