Q. I'd like to know why my cat quit pooping in the litter box he will pee in the littler box once in a great while he will poop in the litter box but he
A. Have him seen by your vet to rule out medical causes. To rule out UTI, have your vet collect a sterile urine sample for urinalysis and culture. Blood work may be able to diagnose kidney disease or diabetes, a stool sample can diagnose intestinal parasites. Once medical causes have been ruled out, you can focus on behavioral issues. If this behavior is a recent development, it could be age related. Pets do develop cognitive dysfunction (senility) as they get older. If you have multiple cats, the general rule of thumb is to have a litterbox for each cat in the house plus an additional litterbox. Offer covered and uncovered litterboxes. Try different types and brands of litter. He may prefer one to another. Try litterbox attractants. Search www.pet360.com for options. If he seems stressed or is feeling anxiety, try to determine and reduce or eliminate the offending stimulus. If that isn't possible, calming pheromone collars or sprays may be effective.