Stool mucus is a gelatinous liquid produced by the intestinal mucosa in the body, which is transparent, slightly sticky, and has the effect of moisturizing the intestinal tract so that feces can be discharged smoothly. In addition, it can also protect the intestinal wall from harmful substances, so the right amount of mucus is beneficial to the human body, generally mixed with feces is not easy to be detected. However, when the intestinal tract is inflamed or subjected to adverse stimuli, it will lead to an increase in the production of mucus in the intestinal tract. In addition, inflammation damage to the intestinal mucosa, so that the damaged parts of the mucosa off, and then discharged with the feces, so the naked eye can see yellowish-white, opaque mucus, the most common diseases in this situation is enteritis, amoebic dysentery, bacillary dysentery, acute schistosomiasis and so on. The most common diseases are enteritis, amoebic dysentery, bacillary dysentery, acute schistosomiasis, etc. It is necessary to consult the gastroenterology department in a timely manner, and carry out stool routine and other related examinations to clarify the cause of the disease and treat the symptoms.