Farting without stool may be caused by underfeeding, indigestion, irritable bowel syndrome and other reasons. 1. Eating too little: when the amount of food eaten is significantly reduced, after normal digestion and absorption by the intestinal tract, the food residue that can be formed into feces is too small to stimulate the intestinal tract to produce feces, but the normal function of the intestinal tract still exists, and there will be no stool and light farting. 2. Indigestion: Indigestion can lead to abnormal gastrointestinal motility. Abnormal fermentation of food in the intestines will lead to an increase in gas production, resulting in light farting, no bowel movement accompanied by abdominal bloating and other symptoms. 3. Irritable bowel syndrome: Irritable bowel syndrome is one of the common intestinal diseases, the occurrence of irritable bowel syndrome will cause gastrointestinal dysfunction, so patients with irritable bowel syndrome will appear farting, no stool symptoms. There is no stool light farting, the patient should go to the regular hospital in time to find out the cause of the disease, under the guidance of the doctor targeted treatment.