causes of dog's having runny & mucus in stool
Following are some potential causes of mucus in a dog's stool: 1  Colitis. 2  Stress. 3  Dietary indiscretion.  Food 1  intolerances. Recent diet changes.  Presence of parasites/ 1 protozoans. Overgrowth of bacteria.  Foreign 1  objects. Imbalance of colon bacteria (the good  kind) Polyps and tumors of the 1  intestinal lining. Intoxication.
What Are the General Symptoms of Diarrhea? Loose or liquid, frequent stools are the most common symptoms of diarrhea in dogs. Other signs include flatulence, blood or mucus in stool, changes in volume of stool and straining to defecate.