Fast intestinal peristalsis may be caused by physiological factors, such as eating too little; or pathologic factors, such as gastrointestinal dysfunction, intestinal flora imbalance, intestinal inflammation and so on. 1. Physiological factors: such as diet is too little, the stomach and intestines quickly complete digestion and push down the food, hunger will stimulate intestinal peristalsis. 2. Pathologic factors: (1) Gastrointestinal dysfunction: gastrointestinal dysfunction, unable to follow the rhythmic peristalsis, there will be fast intestinal peristalsis. (2) intestinal flora imbalance: long-term use of antibiotics or immunity decline leads to intestinal flora imbalance, can not effectively decompose food, stimulate intestinal peristalsis faster. (3) Intestinal inflammation: bacteria invade the intestinal tract, making the intestinal tract congested and edematous inflammation occurs, stimulating the intestinal wall, causing fast bowel movements. Intestinal peristalsis may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.