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Will My Male Cat Be More Affectionate After Neutering? Vet-Reviewed Facts & FAQ

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Image Credit: Pixabay
Last Updated on November 16, 2023 by Christian Adams

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Reviewed & Fact-Checked By

Dr. Luqman Javed

DVM (Veterinarian)

The information is current and up-to-date in accordance with the latest veterinarian research.

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An unneutered male cat can be… a handful, to say the least. Otherwise known as tomcats, there are a multitude of reasons to have them neutered. To answer the question; yes—a male cat will most likely be more affectionate and less aggressive after they have recovered from the operation.

This is because the procedure involves removing certain organs which are the primary producers of a powerful hormone that drives many undesirable behaviors including spraying. You know which organs we’re talking about.

Yeah– no thanks. While neutering removes the hormones and subsequently their related behaviors, this is not to be confused with general behavior issues that require additional attention. We break down dome hormone-driven behaviors below.

divider-catclaw1Hormone Driven Behaviors of Male Cats

Until a male cat has the procedure done, he is ridden with testosterone which can make him exhibit all kinds of aggressive and unwanted behaviors. Let’s have a closer look at what we’re talking about.


Testosterone is the primary male hormone which is associated with traits of male feline behavior: increased size, territorial drive, the desire to mate, and the impulse to fight other males for the right to mate. In nature, this involves expressing the strongest features of your species. For cats, that means that they need to have huge territories and defend them or take them from other cats.

When the cat’s testicles are removed and the hormone is no longer produced in substantial amounts, you should see a huge reduction in aggression, fighting, and other behaviors as mentioned above. Age does matter somewhat, as older cats can continue to exhibit these behaviors to an extent out of habit.

cats fighting
Image Credit; Vshivkova, Shutterstock


It’s fairly safe to say that it is common knowledge that cats mark their territory by peeing or spraying—as many mammals do, and if you didn’t know, now you do. What is a little more significant in regards to our somewhat 1-sided conversation about tomcats, is the smell.

The hormones produced by unneutered cats are far more pungent than in cats who have undergone the procedure. So, if you’ve got a tomcat who’s been spraying, you’re looking forward to not only a more agreeable cat but a more normal-smelling litter box.


This is probably an obvious one, but if you neuter your cat you don’t have to worry about coming home and finding a litter of kittens. You wouldn’t have anyway, because tomcats are deadbeat dads, at best.

It still bears mentioning though, because there have been anecdotal mentions of fatherly tomcats. Besides, there are better ways to meet your neighbors than collaborating on how to deal with a litter of kittens!

cat humping another cat
Image Credit: christels. Pixabay

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Are Cats More Playful After Neutering?

Usually yes. As the cat becomes less aggressive due to all the hormones, he will become less aggressive usually which usually results in a more affectionate demeanor. There are no guarantees, however.

Cats are known for having their own personalities, and especially in older cats or males who have spent a long time outdoors and unneutered, it’s still possible that they can be stand-offish.

The 3 Myths About Neutering Your Cat

1. Your Cat Will Become Overweight

This isn’t necessarily true, although to be fair, the dietary requirements of a neutered cat are different from those of an intact cat. Failure to adjust their diet and food intake will likely result in an overweight cat over time.

As the pet parent, part of your responsibilities include playing with them to promote exercise—or at least providing them with toys or the means to do so on their own, if they will self-engage. A healthy diet is also important.

cat running on exercise wheel_Shutterstock_Dmitri Ma
Image Credit: Dmitri Ma, Shutterstock

2. The Procedure Will Traumatize Your Cat

The cat is put under anesthesia, feels nothing, and has no recollection of the event. The operation itself, while it does involve making small incisions, isn’t very invasive at all, as far as surgical procedures go. Your cat will certainly need time to heal, and probably have some discomfort for a couple of days, but this will pass. Cats are not attached to their appendages in the same way that people are—so this myth is just silly!

3. Neutering Your Cat Will Fix Bad Behavior

While neutering your cat is going to tone down the aggression, spraying, and other hormonally driven behaviors, it doesn’t change who they are. If you have a cat who is extremely aggressive or dominant, he may still be that way to some extent.

If your cat is still exhibiting bad behavior, it’s important to investigate. A common cause of aggression in cats who otherwise wouldn’t be is that they are in pain. Cats are predators and as such very stoic—they don’t show pain, they get aggressive. Be sure to follow up if problems don’t change, though your cat’s behavior won’t change overnight, even if it’s only hormone related.


adorable ginger cat wearing fabric collar when fighting_RJ22_shutterstock
Image Credit: RJ22, Shutterstock

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How Long Does It Take For Cats to Calm After Being Neutered?

With the last section in mind, you can’t expect to take your cat home from the vet and have his hormone levels 100% fixed. It takes time for them to work their way out of your little guy’s system, so make sure you give him a chance to correct. It takes approximately 4–6 weeks before you should really be seeing the behavioral changes you are looking for.

How to Care for Your Recently Neutered Cat

When you get your cat home from the vet, he will undoubtedly be given a cone. The best thing to do is to put him in a reasonably small kennel and let him rest. He’s going to be in some discomfort for about 24–36 hours, and that is totally normal.

The vet may or may not decide to give you medication and instructions on how to administer it, but most of the time that’s not necessary. Most operations take anywhere between 7–14 days to heal. The best way to minimize this is to limit your cat’s movements, leave the cone on, and ensure that they don’t do anything to disturb the sutures while they heal.


While every cat is certainly different, as a generalization, you should see a big improvement in your male cat’s demeanor a few weeks after neutering. A tomcat can surely be a handful, but when you consider aggression, population control, and many factors that contribute to your cat’s wellbeing, it makes sense to have the procedure done. Often, you are rewarded with a gentler, more affectionate version of your cat.

Featured Image: Pixabay

About the Author

Christian Adams
Christian Adams
Christian is the Editor-in-Chief of Excited Cats and one of its original and primary contributors. A lifelong cat lover, now based in South East Asia, Christian and his wife are the proud parents of an 11-year-old son and four rescue cats: Trixie, Chloe, Sparky, and Chopper.

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