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Will neutering stop my male cat's aggression and make him stay home?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered

Hi, I have a 11 months old male cat. He is very adorable but lately he started going out and fights with other street cats.He became very aggressive and howls a lot if we don't let him out. We never let him out since he was small but lately his behaviour is haunting us.Late nights meow's howls ,fighting with other cats and ost important disturbing neighbours. My question is will neutering him will stop this behaviour? Will he be at home after neutering?

5 Answers

Most Helpful Answer

Answered By Rebecca, DVM

Veterinarian

Published on June 4th, 2017

Hi. Yes, neutering will help Toby want to stay home more and hopefully make him less likely to fight. It can take a couple of months after the surgery for his testosterone levels to completely drop but neutering typically does resolve a lot of male to male aggression in cats.

1Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Sara Farmer, DVM
Veterinarian
Published on June 28th, 2018
It's possible that neutering would help since testosterone may make Cream Puff feel more territorial. Unfortunately even neutered cats can have inter-cat aggression issues to it may not completely solve the problem. If you don't plan to breed Cream Puff I think neutering is a good idea for multiple reasons, and if it doesn't solve the problem there are other things you can try to help all the cats get along.
1Pet Parents found this answer helpful
Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on October 9th, 2017
Great question! Yes, neutering them will help reduce the aggression. Intact male cats fight for territory and females, and having them neutered takes away the desire for territory and females. I recommend having it done. I hope this helps :-)
1Pet Parents found this answer helpful
Answered By Laura Johnson VMD
Veterinarian
Published on December 10th, 2017
Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

It takes testosterone about 2 weeks to get out of the system. It is possible that the mounting and violent behavior will stop. But not all aggression is hormonal. Mounting can be a show of dominance or even anxiety. Aggression can be from dominance, fear or territorial. I hope things calm down for you guys soon!

I hope this helps and I wish you all the best!
1Pet Parents found this answer helpful
Answered By Ana M, DVM
Veterinarian
Published on November 4th, 2018
Thank you for submitting your question regarding your cat. Yes, neutering will likely help these issues. It will take approximately 30 days for the testosterone to decrease in his system after the procedure. Some of his behaviors may be learned and may not entirely resolve, but neutering should help. I hope this information helps!
1Pet Parents found this answer helpful

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