Small abdominal distension and the feeling of defecation after meals may be caused by physiological factors such as diet, or pathological factors such as irritable bowel syndrome, dyspepsia and gastroenteritis. 1. Physiological factors: If you eat a lot of chili, garlic and other cold and spicy food or fried, sweet and greasy food that is difficult to digest, it will stimulate the gastrointestinal tract, so that the gastrointestinal peristalsis accelerated, the appearance of postprandial bloating, the feeling of defecation. This is usually normal, and will gradually be relieved after improving dietary habits. 2. Pathological factors: gastrointestinal diseases, such as irritable bowel syndrome, dyspepsia, gastroenteritis, etc., will affect the patient’s digestion, absorption and peristalsis, resulting in gastrointestinal dysfunction, abdominal distention and bowel movement after meals, which is not normal. If the patient has long-term or recurrent symptoms, it is recommended to consult a doctor in time to identify the cause of the disease under the guidance of a professional physician and carry out targeted treatment to avoid delaying the condition.