Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Do Male Cats Go into Heat? Vet-Reviewed Signs & Facts

tortie cat resting on heated bed

Being a cat owner has its ups and downs, however, some moments may become complicated and cause you some stress. If you notice, on occasion, your tomcat trying to flee the home at any chance it gets, and even being away for extended periods, chances are high that there is a female cat in heat nearby. Because a male’s sense of smell is so powerful, they’ll be able to smell the female’s pheromones and instantly head out to search for her.

However, it is crucial to understand that male cats don’t go into heat, but they react to females’ heat cycles and often exhibit irrational behavior. Keeping your friend safe is extremely important, so read our article below to learn more.

divider cat paws oct 2024

Do Male Cats Go Into Heat?

When female cats are in heat, they experience behavioral changes. They may be more affectionate, vocalize more, and even try to run away from home in search of a mate. This behavior is attributed to females exclusively because male cats do not go into heat. The only thing you will notice in your male cat is sensing a female in heat. You may catch your tomcat trying to escape your home, searching for the female in heat, and even becoming difficult to manage.

two cats touching noses
Image By: Sandeep Gore, Shutterstock

How to Keep Your Male Cat Safe During This Time

While male cats do not experience heat themselves, heat in female cats can be challenging for both sexes. With females, owners need to cope with their hormones, while males become obsessed with finding the female. Since this can cause them to stop thinking and acting rationally, they can often hurt themselves in this pursuit. This is why keeping your tomcat safe is of utmost importance.

If your cat is indoors, try to keep them isolated from any females in the neighborhood. Keep your tomcat safely secured in your home, or he will search for any possible chance to run towards the female in heat. Getting him neutered as soon as possible is a good idea as this will decrease or eliminate his urge to mate.

If you have any concerns or curiosities about your cat or their health, we recommend you contact a vet directly.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider cat paws oct 2024

When Do Male Cats Become Sexually Mature?

Most male cats become sexually active once they are adults. They reach sexual maturity from as early as 4 months of age. Once male cats mature, they will likely search for a female to mate unless they are neutered.

two cats mating
Image By: Thanasis F, Shutterstock

Signs of Your Male Cat Reaching Sexual Maturity

Once your male cat starts entering the age of sexual maturity, you will slowly begin noticing several signs. The first and most obvious sign will be urine marking. Another sign you may notice as your male cat matures is a change in his testicles. Before puberty, tomcat testicles are barely visible. Once they mature, their testicles will increase size as they grow, until about 2 to 3 years of age. After that, their testicles will remain the same size.

Other Signs of Sexual Maturity Include:

  • A strong and unpleasant urine odor
  • More frequent urine marking
  • Roaming (if there’s outdoor access)
  • Territorial aggression
  • Sudden aggressive behavior
  • Grumpy behavior around family members and other pets
  • Frequent mood swings
  • Vocalizing excessively

divider cat paws oct 2024

Final Thoughts

Depending on the age of your tomcat, certain behavior can be attributed to either sexual maturity or sensing a female in heat. These can seem very similar to a female cat being in heat, but male cats do not go into heat like females.


Featured Image Credit: Tina Talley, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

2 Responses

  1. I think my male cat starting to be in heat. He will kneed my blanket as he bits down on it and move his lower body as if he is humping it or on me. What does this mean? He gets really vocal and aggressive towards me at times. I’m trying to understand his behavior. I have to admit he scares me at times when he gets super aggressive at me like he tries to make me let him behave like that. What does this all mean?

    1. Hello Melissa. It sounds like you are dealing with a very intense and frightening situation, but it is important to clarify that male cats do not go into "heat"; instead, once they reach sexual maturity, they are essentially "on call" and driven by hormones whenever they sense a female nearby or feel territorial. The behavior you're describing is a display of sexual frustration and territorial dominance common in unneutered males, and the aggression you feel is likely "redirected" energy because he has no other outlet for his surging testosterone. This behavior can be scary, but it is driven by biology rather than a desire to hurt you; the most effective solution is to have him neutered as soon as possible to reduce these hormonal urges. In the meantime, avoid physical confrontation and use long wand toys to redirect his energy from a distance so you stay safe.

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How to Shave a Cat in 8 Vet-Reviewed Steps

As a general rule, cats should not be shaved. In some cases, however, there are exceptions. Cats with incredibly matted fur will benefit...

Can Cats Eat Pumpkin? Vet-Reviewed Facts & FAQ

Yes, cats can eat pumpkin. It isn’t suitable as their whole diet or even most of their diet. However, it can be a...

How Big Will My Kitten Get & Which Factors Affect It? Vet-Verified Facts & Tips

From tiny little kittens that can fit into the palm of your hand to adult cats that might barely be able to fit...

Cat Cafes in Texas in 2026: 3 Purr-fect Spots for Coffee & Cute Cats

Cats and coffee—could there be a more perfect combination? We don’t think so! Cat cafes first became popular in Taiwan and Japan before...

More related

11 Free DIY Cat Room Ideas You Can Make Today (With Pictures)

Cats love to share our space, but they also appreciate having space of their own where they can do whatever they want to...

How to Make a Cat Feel Comfortable in a New Home: 12 Vet Approved Tips

Making a big move can be scary, especially when that means switching owners or going from a shelter to a forever home. For...

5 Best Cat Foods for Feral Cats in 2026 – Reviews & Top Picks

If you are used to feeding feral cats, you probably think of them as your own. After all, it takes a lot of...

7 Best Litter Boxes for Multiple Cats In 2026 – Reviews & Top Picks

Cats living in a community can be territorial over their spaces, including the litter box. However, if you have a few cats who...

Keep reading

Can Cats Eat Doritos? Vet-Approved Facts & FAQ

Doritos are a well-loved chip, to the point that they have been turned into everything from taco shells to casseroles. If you’re a Doritos lover, then your cat is almost certain to come into contact with Doritos, or at least...

Can Cats Eat Doritos

Is My Cat Deaf? 6 Vet Approved Ways to Tell

If you’ve been asking yourself, “Is my cat deaf or ignoring me?”, you’ve probably noticed changes in your cat’s behavior. Maybe they are not responding to your voice like they used to, or perhaps they seem oblivious to the vacuum...

cat ear close up

Why Does My Cat Keep Going to Their Litterbox (But Nothing Happens)? Vet Approved Advice

Over 37% of households in the United States have invited a cat into their homes; that is over 45 million households! About 63% keep their pets indoors exclusively. That’s a good thing, too, since it gives owners a heads-up if...

orange cat beside litter box

How Can I Soothe My Cat’s Itchy Skin: 9 Natural Home Remedies

If you notice that your cat is scratching incessantly, losing hair, or developing a rash, they are likely having an allergic reaction. Skin allergies are fairly common in cats, affecting around 10% of felines, with causes ranging from fleas to...

cat itchy

How to Spot a Broken Cat Tail: 5 Vet-Reviewed Steps

Cats have very flexible tails, and you may even see them with “kinks” and strange angles. Usually, this doesn’t mean that the cat’s tail is broken. However, cats can certainly break their tails. While a tail may seem like one...

tail of a cat on vintage background

7 Best Litter Boxes for Multiple Cats In 2026 – Reviews & Top Picks

Cats living in a community can be territorial over their spaces, including the litter box. However, if you have a few cats who are happy to share with one another, getting a litter box designed for multi-cat households can take...

Two cats in the litter box

How Many Calories Should a Cat Eat? Vet-Reviewed Cat Feeding Guide

All cats have individual dietary needs based on their breed, size, age, and health conditions. As notoriously picky eaters, finding the right food for them is only half the battle. Feeding your cats the appropriate amount is a crucial aspect...

Blue hepper NomNom 4

7 Best Cat Foods for Firm Stools in 2026 – Reviews & Top Picks

Because we scoop out the litter box, we’ll notice if our cat’s stool is runny. Sadly, some cats have weaker digestive systems than others, causing them to develop runny stools more often. What a cat eats plays a significant role...

grey cat just finished eating