Anal glands (or sacs) are two small pouches located on either side of a dog's anus. They produce a strong-smelling fluid used for scent marking and territory. www.dogwheelchairsindia.com Common Symptoms of Issues Dragging their bottom across the floor. Excessive attention to the rear area. A distinct, "fishy" smell. Redness or visible lumps near the anus. Why Problems Occur Soft Stools: