# Why Is My Cat Pooping Outside the Litter Box? — Quick answer

PETHEALTH+ (https://pethealth.org.uk/health/why-is-my-cat-pooping-outside-litter-box-uk): Why Is My Cat Pooping Outside the Litter Box? — Quick answer. Cats rarely toilet outside the tray out of spite. Medical pain, diarrhoea, arthritis, stress, and poor tray setup are common UK causes. Book a vet check first — then review tray number, cleanliness, litter type, and household stress. Sudden change in a previously reliable cat always warrants investigation.

PETHEALTH+ (https://pethealth.org.uk/health/why-is-my-cat-pooping-outside-litter-box-uk): Why Is My Cat Pooping Outside the Litter Box? — Medical causes — check these first. According to International Cat Care, house soiling often starts with illness. Your vet may assess: ### Diarrhoea and gut disease Soft stool is hard to contain. Causes include dietary change, parasites, IBD, and infection. See Cat constipation if straining with hard stools. ### Arthritis and mobility Senior cats with arthritis may avoid high-sided trays or stairs to the basement tray. Painful hips and knees make squatting difficult. ### Anal gland discomfort Full or infected anal glands cause urgency and accidents — your vet can examine externally. ### Cognitive dysfunction Older cats with dementia forget tray location. ### Litter tray avoidance vs urinary emergency Male cats straining in the tray may have a blocked bladder — emergency. See Cat straining to urinate UK. Do not assume all tray problems are faecal only.

PETHEALTH+ (https://pethealth.org.uk/health/why-is-my-cat-pooping-outside-litter-box-uk): Why Is My Cat Pooping Outside the Litter Box? — Behavioural and environmental causes. Once medical issues are ruled out or treated, review: | Factor | What to try | |--------|-------------| | Dirty tray | Scoop twice daily; full litter change weekly | | Wrong litter | Many cats prefer fine unscented clumping litter | | Tray size | Large enough to turn around — 1.5× cat length | | Location | Quiet, private, multiple exits — not beside washing machine | | Number of trays | One per cat plus one extra | | Covered trays | Some cats feel trapped — offer open tray | | Recent change | New baby, building work, new pet — stress | ### Multi-cat homes Bullying at the tray is common. Provide several trays in separate rooms so one cat cannot guard access. ### Stress and marking Urine marking/spraying differs from faecal accidents — usually vertical surfaces for urine. Faecal marking is less common but stress still plays a role.

PETHEALTH+ (https://pethealth.org.uk/health/why-is-my-cat-pooping-outside-litter-box-uk): Why Is My Cat Pooping Outside the Litter Box? — Step-by-step UK action plan. 1. Book vet appointment — bring notes on stool consistency, frequency, and location of accidents 2. Add a tray in the room where accidents happen 3. Clean soiled areas with enzymatic cleaner — ammonia products attract repeat soiling 4. Keep routine — feeding and play at consistent times 5. Never punish — shouting increases stress and worsens soiling

Source: https://pethealth.org.uk/health/why-is-my-cat-pooping-outside-litter-box-uk