There are many reasons for stomach distension in the morning, first of all, consider that it is related to diet, such as eating too much at dinner, poor digestion, the presence of intestinal stool or food residues in the gastrointestinal tract, this situation will appear in the morning stomach distension, but this situation usually decreases after the morning bowel movement distension. Secondly, there may be gastrointestinal dysfunction or gastrointestinal insufficiency, which is usually improved by appropriate activities after waking up or by pressing the abdomen to promote peristalsis of the gastrointestinal tract. Some patients may have chronic gastrointestinal diseases, such as chronic gastroenteritis, gastrointestinal polyps, gastrointestinal tumors and so on. In addition, some patients have subjective sensory abnormalities caused by psycho-psychological factors, such patients usually have no organic lesions, but the discomfort caused by work pressure or life pressure, mental and psychological burdens that disrupt the normal gastrointestinal nerves. In short, although the causes of morning bloating are diverse, but as long as there is no organic lesion, usually as long as you develop good eating habits, usually will be significantly improved. If the symptoms persist, do a gastroscopy to further clarify the diagnosis and treatment.