Obviously eat very full after a while hungry, this situation may be a normal physiological phenomenon, but also may be caused by disease. For example, for some young adults, hunger is a physiological response, due to their own fast basal metabolism, high activity, mental stress and other reasons, this situation may occur, without too much worry. The following common clinical causes may also cause: a. Digestive system diseases 1, gastrointestinal disorders: mostly caused by irregular diet, drug stimulation, excessive work pressure, mental tension or anxiety, etc. When the onset, it can also appear very full after a while hungry phenomenon, may also be accompanied by nausea, vomiting, bloating, diarrhea and other symptoms. It is recommended to consult a doctor in time, under the guidance of the doctor, according to the cause of the application of drugs for treatment; 2, gastric ulcer: due to increased secretion of gastric acid and pepsin, can lead to digestion of food in the stomach, decomposition speed up, appeared to eat very full after a while on the phenomenon of hunger. Under the guidance of a doctor, appropriate application of acid-suppressing drugs for treatment, commonly including proton pump inhibitors, such as omeprazole; H2 receptor antagonists, such as famotidine; also need to apply drugs to protect the gastric mucosa, such as bismuth, antacids, etc.; 3, other: if the patient itself exists stomach disease, taking domperidone and other pro-gastrointestinal dynamics drugs for treatment, can lead to enhanced gastrointestinal peristalsis, speeding up the gastric emptying speed. Causes the phenomenon of hungry after a while after eating very full. Second, the endocrine system diseases 1, hyperthyroidism: because the thyroid gland itself produces too much thyroid hormone, can often cause hyperphagia, easy to hunger, sweating, fear of heat, lethargy and other symptoms of accelerated metabolism, usually accompanied by anxiety and irritability, easily excited and other signs of increased mental excitability. If the above symptoms appear, you need to go to the hospital in time for thyroid function examination and timely treatment after diagnosis. 2. Diabetes: It is a metabolic disease characterized by chronic hyperglycemia caused by defective insulin secretion or action, with typical symptoms of polydipsia, polydipsia, polyphagia and weight loss, and may also appear to be easily hungry after eating. Patients who have recently noticed large changes in diet, urine output and weight compared to the previous ones need to be promptly seen by a hospital to investigate whether they have diabetes. In addition, diseases such as pituitary tumors and cranial occupations, which are relatively rare, may also lead to endocrine abnormalities in the human body, which may cause hunger after eating well, and may be accompanied by headaches, dizziness, and increased hairiness. Therefore, once the above situation occurs, it is recommended that patients seek medical advice to identify the cause in order to avoid delaying the condition.