White mucus in the stool may be a normal physiological phenomenon, or it may be caused by diseases such as irritable bowel syndrome, chronic colitis and intestinal tumors. 1. Normal physiological phenomenon: the intestines will secrete mucus to promote peristalsis, and there may be a small amount of mucus attached to the surface of the feces. If there is no change in the nature and shape of the stool and no abnormal symptoms, there is no need for special treatment. 2. Irritable bowel syndrome (IBS): related to intestinal flora imbalance, abdominal pain, abdominal distension and other symptoms may occur, and there will be a change in the character of the stool, and the feces may show white mucus. 3. Chronic colitis: Inflammation occurs in the intestinal tract, which in turn stimulates the intestinal tract, and symptoms such as diarrhea, abdominal pain, mucus blood stools, and urgency and heaviness (discomfort in the lower abdomen, wanting to relieve stools very much, and feeling of incomplete defecation after defecation) can occur repeatedly. 4. Intestinal tumor: As the patient irritates the intestinal mass during defecation, mucus may appear for a long time, but it is usually mucous blood stool, and may be accompanied by abdominal pain, bloating, weight loss, fatigue, change of defecation habit and other symptoms. There are many other reasons that lead to white mucus in the bowel movement, it is recommended to go to the regular hospital in a timely manner, after clarifying the cause of the disease, under the guidance of the doctor for targeted treatment.