It is best not to eat pears when you have diarrhea. The pear itself is a cold food, with the effect of clearing heat and nourishing Yin. However, when diarrhea, the function of the spleen and stomach is relatively weak, when eating cold food will cause damage to the spleen and stomach, will aggravate the symptoms of diarrhea. The nature of pear is relatively cold, eating too cold food when diarrhea, will cause stimulation to the gastrointestinal mucosa, resulting in faster intestinal peristalsis. Pears contain a large amount of glucose as well as lactose, which needs digestive enzymes in the intestinal system to be broken down. But during diarrhea, the function of the intestinal system is relatively disordered, not able to normal secretion of digestive enzymes, can not break down the sugar contained in pears, but will therefore aggravate the symptoms of diarrhea. The pear contains a large amount of dietary fiber, this substance can stimulate intestinal peristalsis aggravate diarrhea, diarrhea is best to eat some warm food, such as porridge, can repair the gastrointestinal mucosa, and produce relatively little food residue, will not aggravate diarrhea symptoms.