Bloating even without eating may be due to indigestion, dysbiosis and other reasons. 1. Indigestion: When indigestion occurs, there may be a lack of digestive enzymes, leading to poor digestion of food. When the intestinal flora is imbalanced, it may lead to an increase in the number of aerobic bacteria in the intestines, resulting in the symptom of bloating without eating. 2. Dysbiosis: When the bacteria in the patient’s body are dysbiotic, it will lead to the accumulation of a lot of waste gas in the patient’s body, which will lead to the patient’s uncomfortable symptoms of stomach bloating. There may be other causes of bloating, such as chronic gastritis, cirrhosis of the liver, gastric cancer, cholecystitis, intestinal obstruction, pelvic inflammatory disease, prostatitis, etc. The patient needs to go to the hospital for examination, according to the results of the examination, under the guidance of the doctor for targeted treatment.