The causes of excessive bowel movements are mainly due to: 1. dietary factors, such as eating too much, more water in the food and more sludge in the food. The phenomenon of increased defecation occurs due to the digestion and absorption of food in the gastrointestinal tract, or increased water in the stool. 2. Intestinal causes, mainly due to factors such as hyperactive intestinal motility, intestinal infection and intestinal injury, resulting in faster intestinal motility. The food consumed in the intestinal tract after digestion, decomposition, absorption through the intestinal peristalsis accelerated, the intestinal feces quickly out of the body, resulting in increased defecation. 3, hyperthyroidism, due to the body’s increased secretion of thyroid hormones, resulting in the body’s basal metabolic rate increased intestinal peristalsis will also accelerate, thus making the intestinal feces discharge increased.