Hungry soon after eating may be caused by physiological factors such as rapid metabolism in young people, and may also be caused by hyperthyroidism, gastrointestinal peristalsis and other diseases. 1. Physiological factors: young people are in a stage of rapid physical growth and development, the body’s metabolism is more vigorous, the daily energy requirements are also more. If the daily exercise is larger, the body’s demand for energy is also higher. Insufficient food intake in these cases may cause hunger soon after meals. 2. Hyperthyroidism: patients suffering from this disease due to high levels of thyroxine secretion, resulting in the body’s metabolism to speed up, which may lead to the symptoms of hunger after eating, this disease is usually accompanied by sweating, panic, weight loss and other symptoms. 3. Intestinal peristalsis: various causes of intestinal peristalsis such as acute and chronic enteritis, will cause food in the gastrointestinal emptying speed, gastrointestinal absorption efficiency is reduced, may lead to the symptoms of hunger after eating. If the symptoms persist after eliminating the physiological factors, it is recommended to see a doctor in the hospital, complete the relevant examinations and then under the guidance of the doctor for treatment.