Why is my cat spraying blood and peeing outside the litter box?

Question

Hello, After rescueing a kitten 5 months ago, our older cat has been spraying more often than usual. The last time he sprayed blood when we moved house the vet said it was a self induced UTI. He’s always been a grumpy cat that sprays and hisses ever since he was a kitten but it has gotten way worse since getting the kitten and now blood. Our kitten plays way too rough with him (body slams him + bites hard) so we keep them seperated to avoid fighting. Please help! Pet's info: Cat | American Shorthair | Male | neutered | 7 years and 2 months old | 14 lbs

Shaneez Wallani, DVM · Accepted Answer

Urination outside the litterbox and blood in the urine can be caused by stress or behavioural issues, but can also be due to urinary tract infection, crystals in the urine, stones in the urinary tract, toxin ingestion, coagulation disorders, or trauma to the area. Another cause, which you referenced, is idiopathic cystitis or Feline Urinary Tract Disease, which can cause the symptoms you've noticed and can be triggered by stress. It is important that you make an appointment to have Keiko seen by your veterinarian immediately to help determine the cause of his behaviour and to start treatment. If you notice him straining to urinate/unable to produce urine, this is a medical emergency and he should be seen by a vet immediately. Pain medications meant for humans can be very dangerous (and even deadly) for cats, so I do not recommend giving any to Keiko without consulting with your vet. If medical causes are ruled out, it is possible that Keiko is exhibiting signs of stress in his home environment. You can do the following to help make sure Keiko ’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 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, and Feliway Friends, which helps cats get along with each other www.feliway.com/ca_en/Products/FELIWAY-FRIENDS-Diffuser .

Why is my cat spraying blood and peeing outside the litter box?

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