Why is my cat peeing outside the litter box and spraying everywhere?
Causes of urination outside the box can be urinary tract infection, crystals in the urine, stones in the urinary tract, trauma to the area, or difficulty getting into the litterbox due to pain, or other reasons. It is important that you make an appointment to have Moon seen by your veterinarian as soon as you can to help determine the cause of his behaviour and to start treatment. If you notice his straining to urinate/unable to produce urine, this is a medical emergency and she should be seen by a vet immediately. I highly recommend speaking to your vet about having Moon neutered, as this kind of behaviour can happen in male cats as a form of marking behaviour, and sometimes having them neutered can help reduce or eliminate the marking. It is also possible that Moon is exhibiting signs of stress in his home environment. You can do the following to help make sure Moon’s environmental needs are being met. Cats need at least one litterbox per cat plus one extra to help reduce stress associated with the litterbox. They should be placed in separate rooms, away from the food and water bowls, must be scooped at least daily (preferably multiple times a day)and washed out at least weekly with a mild soap, followed by thorough rinsing. Cats need a lot of space to explore, but keeping them indoors is much safer than letting them outside, due to the risk of injury from cars, wildlife, other animals, etc. The key is providing space (particularly vertical space for climbing, such as cat trees, ledges, and the like) inside the home. Visit http://www.veterinarypartner.com/Content.plx?P=T&C=33&S=2 , healthcareforpets.com and https://indoorpet.osu.edu// for tips on stress reduction. Also look into Feliway, a synthetic pheromone that is available in a diffuser and spray form that promotes calm feelings in cats http://www.feliway.com.
Updated on September 23rd, 2025