First of all, we should pay attention to the problem of diet structure, the body mainly depends on carbohydrates and other energy supply, can consume staple foods, protein, fatty diet to supplement sufficient energy. Vegetables, etc. contain more vitamins, more consumption of poor energy supply, there will be a feeling of hunger. Consider whether there is diabetes mellitus, polyphagia, polyuria, wasting, should improve blood sugar, glycated hemoglobin, glucose tolerance measurement and other tests, if the diagnosis of diabetes mellitus need to diet control, exercise, drugs or insulin application, so that blood sugar standards to improve the symptoms. Hyperthyroidism may also show symptoms of high metabolism such as overeating and easy hunger, so blood analysis, liver and kidney function, thyroid function measurement and thyroid ultrasound should be improved, and anti-thyroid drugs such as methimazole should be added. Patients with parasitic diseases and tumors need to be further examined and treated accordingly.