Always hungry fast physiological, pathological, pathological fast hunger may suffer from hyperthyroidism, diabetes and so on. 1. Physiological hunger: may be too much exercise, eat less food, this situation can be appropriate to increase the amount of food and drink, reduce the amount of exercise. 2. Hyperthyroidism: Hyperthyroidism patients are characterized by eating too much, fast hunger, body thinning, patients are often accompanied by protruding eyeballs, palpitations, sweating, protruding eyeballs and other such symptoms. 3. Diabetes: Diabetes can also be manifested as fast hunger, body wasting, eating more food for dinner, often accompanied by thirst, drinking more water symptoms. Fast hunger patients should consult a doctor in a timely manner to clarify the cause, and regulated by the doctor to deal with, the patient should not self-medication, to avoid improper use of medication and bring about adverse consequences.