There are many reasons why a British Shorthair may stop using the litter box. Here are some possible causes:
1. An unsuitable litter box or litter. Cats may avoid the litter box if it is too dirty, if the litter being used is unpleasant for them — or has recently been changed — or if the litter box is placed in a location they do not like. It is important to clean the litter box regularly and adapt its conditions to the cat’s preferences. Some cats, even though they used covered litter boxes at the cattery, may feel more comfortable using an open litter box in their new home. You can find a description of the types of litter that have worked well for me since 2014, based on my own observations and those of the new families I stay in contact with, at this link.
2. Health problems. If a cat suddenly stops using the litter box, this may be the result of a health problem such as a urinary tract infection, intestinal problems, pain while urinating or defecating, or musculoskeletal pain. If you notice any change in your cat’s litter box habits, you should consult a veterinarian.
3. Stress and anxiety. Changes in the environment, introducing a new animal into the home, moving house or other stressful situations may affect a cat’s litter box behaviour. This applies mainly to the location and type of litter box, as well as their number if a new cat has recently joined the household.
4. Territorial behaviour. Cats are territorial animals, and litter box problems may result from attempts to mark their territory, particularly in unneutered males, but also in females in heat.
5. Cleanliness. Cats are very clean animals, and if the litter box is not kept sufficiently clean, a cat may refuse to use it.
6. Changes in diet. Some changes in a British Shorthair’s diet may affect the digestive system, which in turn may result in inappropriate litter box habits. Read my article about healthy nutrition by clicking here.
If your British Shorthair stops using the litter box, it is always worth first consulting the breeder and discussing the “litter box conditions”, the cat’s environment and any other factors that may be affecting its behaviour. The next step should be a veterinary consultation to rule out any possible health problems.