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

Share

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 have a question about your cat's health or behavior, why not Ask a Vet for Free with Catster. Our veterinary team answers reader questions and provides trusted advice to help you better understand your cat.

askavet on catster

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.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

The Original Space Invaders – Why Zero Respect for Personal Boundaries Is a Good Thing

Cats have a reputation for being independent, and in many ways they are. But anyone who has tried to work at a laptop...

How Cats Are Helping to Cure Cancer

When most people think about medical breakthroughs, they picture scientists in laboratories and clinical trials involving human patients. Few would imagine that the...

Ask Dr. Paola – My Cat Loves Eating Grass, But It Makes Her Vomit! (June 29, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Learning to Speak Cat with Anthony Smith

Many cat lovers know me through Learn to Speak Cat and Cattitude – Doggonit, cartoons that explore the often mysterious, occasionally mischievous, and...

More related

Why Do Cats Hold Their Mouths Open? 9 Vet-Approved Reasons

Cats have a special relationship with their five senses, which is partly behind the question of “Why do cats keep their mouth open?”...

Why Is My Cat Sneezing All of a Sudden? 6 Vet-Reviewed Reasons

Has your beloved feline friend suddenly started sneezing as if there’s no tomorrow? Cats sneeze for various reasons. Your kitty could have gotten...

How My Cats Help Me To Switch Off and Focus on The Now

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and meet my five hilarious cats: Clutch, Cyril, Alex, Zelda, and...

Do Burmese Cats Shed A Lot? Vet-Verified Facts & Care Tips

Bringing a cat home to be part of the family is a big decision. Yes, most of us are aware of the basics...

Keep reading

Do Cats Shed More in Summer? Vet-Reviewed Facts & Maintaining Tips

It’s no secret that our feline friends shed. No matter if you have a short-haired or long-haired variation, they require frequent brushing and maintenance to keep their shedding at manageable levels, and even then, they’ll still shed! Cats are avid...

Adult-ragdoll-cat-lying-relaxed-in-the-garden

10 Best Cat Hair Remover Tools in 2026 – Reviews & Top Picks

As much as we love our cats, the same cannot be said about the tiny sticky hairs always present on clothes, furniture, and bedding. But it is the price we must pay for the comfort, joy, and companionship these little...

woman leaning jeans with cat hair remover

How Much Catnip Can I Give My Cat? Vet-Reviewed Facts & FAQ

While most pet owners have given their feline pal catnip before, it’s hard to know how much you should give your cat or even what a safe amount is. Cats cannot overdose on catnip. However, even if there is no...

Gray Cat Enjoying Fresh Catnip_Anna Hoychuk_shutterstock

Where Do Outdoor Cats Sleep? 7 Places They Like to Curl Up (Vet-Reviewed)

Some cats are strictly indoor pets and prefer lounging on a bed, tower, or sofa. However, others split their time between being inside and outside. So, when it comes to finding a safe place to sleep outdoors, where do our...

cat walking outdoors looking at the camera

Why Are My Cat’s Gums Red and Swollen? 8 Possible Reasons & What to Do

Owning a cat has its ups and downs, and unfortunately, most of the downs occur when our pets are sick. When your cat has dental issues, it can sometimes indicate an underlying health problem. Either way, dental complications can have...

Cat with red, swollen an inflamed gums or resorption of teeth in felines and gingivitis showing teeth

What Does Ringworm Look Like on a Cat? Vet Approved w/ Pictures

It is never enjoyable when something is wrong with your cat. Whether it’s an upset stomach, a cut, or something more serious, neither you nor your pet are having a good time when they are ill. And when you hear...

Ringworm lesion in cat

10 Fascinating Vet-Reviewed Facts About Polydactyl Cats (With Pictures)

Polydactylism is when an animal has a higher-than-usual number of fingers and toes. It is actually surprisingly common in some animals, including cats. While cats usually have five toes on each of their front feet and four toes on their...

cute little paws of a polydactyl cat

Are Geraniums Poisonous to Cats? Vet-Verified Facts & Info

If you’re a cat lover who also loves plants, you already understand the importance of knowing which plants are toxic to your cat. Potted plants can be a lovely way to brighten up your home’s interior, but if you have...

Catster_Are Geraniums Poisonous to Cats

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.