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Why did my 5-month-old kitten pee on my bed after another cat used his litter box?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 5 months and 19 days old | 9.2 lbs

My 5 month old kitten has been litter trained since the day we got him.. which is since he was about four weeks old. He just peed on my bed. It wasn’t extra stinky. He has never done any like it before but a different cat used his litter box. Is it starting spraying or is it just him not peeing in his litter box because someone else did?

3 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on October 20th, 2018

It could be Freddy Kruger isn't happy someone else used his litter box, and he's letting know by urinating on your bed. You should have a litter box for each cat, plus one extra. It could also be that he is suffering from a medical illness such as feline idiopathic cystitis. Try adding another litter box, but if this behavior continues, bring him into the vet for a health check. Best of luck.

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1Pet Parents found this answer helpful

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    Answered By Mallori Kaminski, BVSc

    Veterinarian

    Published on February 26th, 2017

    It may be that Afro had an accident as he couldn't get to his litterbox in time, as he is still young. However, urinating outside the litterbox can be a sign of a urinary tract infection, lower urinary tract disease, or kidney disease. If he's used his litterbox since then and hasn't had another accident, and is still eating, drinking and otherwise well in himself, then I would just monitor him for now. If he has another accident or stops eating/drinking and acts abnormally, then I would take him to his vet for an exam. The vet will be able to test his urine and do blood work to look for signs of disease.

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    Answered By Sara Farmer, DVM

    Veterinarian

    Published on January 9th, 2018

    It certainly could! Sometimes the first sign of lower urinary tract disease is inappropriate urination outside the litter box. Young male cats are prone to developing feline interstitial cystitis which is characterized by inflammation in the bladder. While infections are less common they can occur, and cats can also develop bladder stones. I would recommend seeing your veterinarian so they can check a urine sample to rule out a medical problem.

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