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Why is my cat suddenly violent and aggressive? What's the problem?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | spayed | 2 years and 7 months old | 8 lbs

My cat has gotten very violent lately for no reason, what could be the problem?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on February 17th, 2017

Any sudden change in behavior warrants an exam with your veterinarian. Frequently, illness or injury can be the cause. It may also be some redirected aggression, especially if Bella can see or hear cats outside. If she is upset by them and can't get to them, she may strike out at whoever is close. Once medical causes are ruled out, check your property for signs of nearby ferals or neighborhood cats. Use a pest repellant along the border of your property. You can buy a liquid or powder at most hardware or home improvement stores. Try to limit her sight from windows or doors if possible. Try a pheromone product such as Feliway spray or diffuser to decrease any anxiety or aggression.

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