Stomach bloating when you eat is not necessarily cancer, but can also be caused by indigestion, slow peristalsis, gastritis and other conditions. Stomach distension when eating is mostly considered to be functional changes of the stomach, such as unreasonable dietary habits, overwork, resulting in gastrointestinal dysfunction and slowed peristalsis. Patients are advised to eat more fresh vegetables and fruits, and at the same time perform abdominal massage by pressing the abdomen clockwise with the belly button as the center to promote exhaustion. Some digestive system diseases, such as gastritis, gastric ulcer, reflux esophagus disease, etc., can also occur after eating stomach bloating phenomenon. Stomach distension after eating is also considered to be stomach cancer, esophageal cancer, etc. Patients may also have symptoms such as wasting and weakness, which require further examination to clarify the specific diagnosis. If patients often have stomach distension after eating, it is not recommended to take prescriptions or drugs without authorization, and they can go to gastroenterology department in time for reasonable treatment under the guidance of doctors to avoid delaying the disease.