The presence of residue in the stool is related to diet, emotion, exercise, indigestion and other factors. Under normal circumstances, the human body should excrete banana-shaped, light yellow stools, 1-2 times a day, once every two days is normal. If you find loose stools with food residue in them, the main consideration is related to diet. Diet often eat gas-producing foods, such as sweet potatoes, potatoes, onions, which are not easily digested and produce gas when they are ingested into the stomach. Therefore, the patient will experience abdominal distension, increased gas emission, loose stools, which will also lead to food residues in the stools. In Chinese medicine, emotional disorders can lead to liver depression and stagnation of qi, spleen and stomach dysfunction, which is also known as gastrointestinal dysfunction in Western medicine, and abnormal peristalsis of the intestinal tract after food intake, which can also lead to excessive food residue. Regular exercise is good for health, can promote gastrointestinal peristalsis, so long-term non-exercise will lead to slow gastrointestinal peristalsis, there will be food residue. If the stomach’s digestive function is not good, gastric power is not enough, will lead to indigestion, food intake can not be digested and absorbed, can not be better discharged from the body, so there will also be more food residue.