After eating or feeling hungry: first, whether the amount of food is too little, indeed not full; second, after eating always still feel hungry, or to exclude metabolic system diseases, such as whether there is increased blood sugar, thyroid function abnormalities, may lead to increased metabolism of the patient, often prone to symptoms of hunger; third, whether there are digestive system diseases. Therefore, once there is a frequent feeling of hunger after eating, it is still recommended that patients should go to the hospital for blood glucose and thyroid function tests, as well as related digestive system diseases, to clarify whether there is an organic disease. In addition, patients with psychiatric disorders, bulimia, may also be related to certain psychiatric disorders, even after eating a large amount of food, the patient still always feels full and hungry, whether the patient has anxiety, emotional abnormalities, there is also a clear correlation, so it is recommended to go to the hospital for further diagnosis and treatment.