The feeling of hunger soon after eating is considered to be related to digestive system diseases, hyperthyroidism, diabetes, mental factors and other reasons. 1. Digestive system diseases: gastritis, gastric ulcer, duodenal ulcer and other digestive system diseases, due to stomach acid reflux, belching, bloating and other symptoms, appetite and food will be affected, eat less naturally hungry quickly. 2. hyperthyroidism: hyperthyroidism patients due to the secretion of thyroid hormones, the body metabolism speed up easy to appear after meals hunger, patients can also be accompanied by panic, fear of heat, sweating, body thinning and other symptoms, can be serum thyroid hormone and other tests to help clarify the diagnosis. 3. Diabetes mellitus: Because the sugar ingested cannot be digested and absorbed into nutrients, patients often feel hungry, and may also experience symptoms such as excessive drinking, excessive urination, weight loss, etc. Blood glucose testing can help clarify the diagnosis. 4. Mental factors: due to mental tension, excessive anxiety and other adverse emotional effects, so that the gastrointestinal neuroreceptors and central nervous system regulation between the abnormal, resulting in patients easily feel hungry, can be psychological counseling, to overcome anxiety. Of course, hunger soon after eating may also be caused by other reasons, if the symptoms recur, it is recommended that the patient’s hospital to find out why.