Farting or chain farts may be caused by eating too fast, poor digestion and bowel cancer. 1. Eating too fast: patients eat too fast or talk too much while eating, so that too much gas is inhaled in the stomach and intestines, which may lead to the phenomenon of farting or chain fart. 2. Poor digestive ability: poor digestive ability of the patient makes the food accumulate in the stomach and cannot be absorbed by the intestines in time, which will produce gas and lead to abdominal distension, thus farting or chain farts may occur. 3. Intestinal cancer: malignant tumors in the patient’s body block the intestinal tract, making intestinal peristalsis unsmooth, which will easily cause gas accumulation, resulting in farting or chain farts. Patients who have farting or chain farts for a long time are advised to go to regular hospitals in time to find out the cause of the disease and carry out standardized treatment according to the cause of the disease.