Low blood sugar may be caused by excessive hunger, medication, tuberculosis, insulinoma, etc. Solutions include timely supplementation of sugar to relieve symptoms, such as intake of candies, bread, steamed buns, sugar beverages, etc.; and treatment of the cause of the disease, for example, insulinoma-induced hypoglycemia needs to be surgically removed in order to relieve symptoms. Hypoglycemia rarely occurs in normal people, but hypoglycemia can also occur in the case of prolonged fasting, for example, some people do not eat breakfast and then exercise, which may lead to hypoglycemic fainting, at this time to supplement the sugar such as soymilk, sugar water, steamed buns and other foods can be. The most common drug-induced hypoglycemia is caused by diabetic patients taking hypoglycemic drugs, such as metformin, Repaglinide, gliclazide, glibenclamide and other drugs. Other medications that can cause hypoglycemia include quinolones, quinine, and other drugs. Many diseases can also cause hypoglycemia, such as beta cell tumors, insulinoma, and insulin autoimmune hypoglycemia. Hypoglycemia can also be seen in certain severe diseases such as tuberculosis, renal failure, liver failure, heart failure, acute severe pancreatitis, sepsis, or nutritional deficiencies. Therefore, it is recommended that patients suffering from hypoglycemic episodes take sugar-containing substances immediately and visit a hospital for treatment under the advice of a doctor.