More than ten years of bloating and gas without food are bloating may be indigestion, chronic gastritis, colorectal cancer and other diseases. 1. Indigestion: The gastrointestinal peristalsis caused by long time bad eating habit, drinking alcohol and other factors. The food eaten before cannot be digested smoothly in the intestines and discharged from the body, resulting in a large amount of food residue remaining in the gastrointestinal tract, which causes gas and bloating without food. 2. Chronic gastritis: Chronic gastritis affects gastric motility, leading to slow gastric emptying and food retention. The retention of food for a long time will lead to fermentation, and the fermentation of food will produce more and more gas to cause abdominal distension, which will lead to abdominal distension for more than 10 years and bloating without eating. 3. Colorectal Cancer: It is caused by the dysfunction of intestines or intestinal obstruction, which is mostly concentrated in the middle and lower abdomen. In the early stage of colorectal cancer, bloating often occurs with gas and bloating without eating, which may be accompanied by abdominal pain and other symptoms. It is suggested that patients with long-term bloating should go to regular hospitals for consultation in time. Find out the cause and take targeted treatment under the guidance of professional doctors.