Loose stool refers to thin, unformed stool and mucus in the stool, the main reasons are the following: 1, dietary factors, long-term preference for spicy, stimulating, fried, barbecued, high-sugar, high-fat food, the initial intestinal mucosa caused by long-term stimulation of digestive absorption and indigestion, resulting in thin stool, unformed and mucus-containing symptoms. 2, inflammatory diseases of the intestinal tract and enteritis, mainly 3, intestinal polyps and intestinal tumors, polyps and tumors can also produce intestinal obstruction and irritation symptoms when they are large, resulting in changes in stool characteristics, including an increase in the number of stools, thinning, thinning, unformed and blood in the stool. This may result in changes in stool characteristics, including more frequent stools, thinner, thinner stools, unshaped stools, blood in stools, mucus, etc.