A vegetative person is in deep coma and cannot eat on his/her own, and needs to have a gastric tube inserted to assist him/her in eating. Their body can not move, gastrointestinal peristalsis slows down, poor digestion, intestinal flora imbalance, it is easy to cause flatulence or diarrhea. Tummy rubbing can promote the peristalsis of the gastrointestinal tract, facilitate the digestion of food and the discharge of waste, reduce its residue, the bacteria will not decompose the intestinal contents for a long time, and will not produce excessive gas, thus relieving flatulence. The reality is that belly rubbing is not very effective for flatulence in vegetative people. If the flatulence is serious, the vegetative person needs to use medication under the guidance of the physician for exhaustion, and can use some medicines to promote gastrointestinal peristalsis, such as morphine, to help the patient alleviate the symptoms. After the symptoms of the vegetative person, should promptly seek medical treatment, under the guidance of the doctor to deal with.