When blood glucose is high, it is important to pay attention to the assessment. A good and accurate assessment of the condition is the basis for subsequent interventions. The first step is to identify the specific level of elevated blood glucose and further determine whether it is physiologically elevated or pathologically elevated, and make a diagnosis as accurate as possible. If it is a physiological elevation of blood glucose, the method of lowering blood glucose should be to relieve the physiological causes of elevation of blood glucose, such as avoiding emotional fluctuations, relieving the stimulation of cold and heat, and providing timely and symptomatic treatments for trauma, infections, and surgery and other stresses. If the high blood sugar is caused by pathologic reasons, the treatment should be based on different causes. For example, if you can replace other drugs that do not affect blood glucose, you should replace the drugs, if not, you need to choose drugs or insulin to reduce blood glucose, to avoid long-term high blood glucose damage to the body, for some diseases caused by elevated blood glucose, such as cortisolism, primary aldosteronism, hyperthyroidism, hepatic dysfunction should be actively treated for the disease itself, the primary disease control, blood glucose will naturally be increased. Once the disease is under control, the blood glucose will naturally drop to normal. For people with abnormal glucose tolerance, diet and exercise are the main ways to lower blood glucose, when the blood glucose is still not normal after diet and exercise control, and diabetic patients should choose reasonable oral hypoglycemic drugs or insulin according to the blood glucose to lower the blood glucose. When there is high blood sugar, should choose the right way to lower sugar for the reason, but no matter which way to choose diet, exercise or drugs, the purpose is to lower blood sugar to normal as soon as possible, and keep it normal for a long time, to prevent long-term high blood sugar from causing irreversible damage to our body.