The yellow color comes from undigested fat. The stool is often greasy with the distinctive smell. Rhubarb and the natural laxative senna can also induce a yellow tinge to the stool.

Medically reviewed by Qin Rao, MD "Sticky poop" occurs when there is excess mucus in stool (feces) or it's greasy and harder to wipe or clean. It can be a symptom of infection, or a common sign of ...

How to obtain a good fecal sample for testing from your dog Obtain a sample 6-12 hours before your visit. Samples 24 hours or older are less valuable. Carry a plastic bag on a leash walk.