why is my cat peeing outside the litter box?

When a cat urinates outside its litter box, the first step is always a veterinary examination to rule out medical issues. Conditions like urinary tract infections (UTIs), bladder stones, kidney disease, diabetes, and hyperthyroidism can cause discomfort or increased urination, leading to accidents. A veterinarian can perform a urinalysis, blood tests, and imaging to diagnose these problems.

If medical causes are excluded, behavioral factors are likely. Litter box aversion is common: cats prefer clean boxes, so scoop at least once daily and change all litter weekly. The box itself might be an issue; many cats prefer unscented, fine-grained litter and a large, uncovered box. Ensure the box is easily accessible, in a quiet, private location, and that you have enough boxes (one per cat plus one extra).

Stress and anxiety are significant contributors. Changes in the home environment, new pets, visitors, or conflict with other household animals can cause a cat to feel insecure and urinate outside the box as a coping mechanism or to mark territory. Do not punish your cat for inappropriate urination, as this can increase anxiety and worsen the problem. Instead, focus on identifying and addressing the root cause.