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.

Cat Health & Care

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

By Jana Blagojevic · Reviewed & fact-checked by Dr. Marta Vidal-AbarcaVet Approved
Dr. Marta Vidal-Abarca
Reviewed & Fact-Checked byDr. Marta Vidal-AbarcaBVSc GPCert Ophthal MRCVS (Veterinarian)
Dr. Marta has over 16 years of veterinary experience, working across the UK and Spain as a remote veterinary consultant and in the clinic. She graduated from Cardenal Herrera-CEU University in Valencia, Spain. She holds two Ophthalmology Certificates, GPCert Ophthal from ESVPS and UAB. She has wide experience in small animal internal medicine and surgery with a soft spot for cats. Marta is a member of the Royal College of Veterinary Surgeons, and her main fields of interest are ophthalmology and critical care medicine. Dr. Marta loves being able to share the most helpful information with pet parents across the world as one of Catster's in-house veterinarians. She wants to provide details that can help in all aspects of pets' lives with their beloved ones. She loves knowing that she can support our readers and communicate about any medical topic that might be relevant to their pet's health and well-being.View authorThe information is current and up-to-date in accordance with the latest veterinarian research. Read about our vets
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.

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.

Sources

Featured Image Credit: Tina Talley, Shutterstock

The Catster Newsletter

Expert cat care, straight to your inbox

News, insights, and useful advice, delivered to you.

No spam — unsubscribe anytime.

By signing up, you agree to our Terms & Conditions and Privacy & Cookies Policy.

Click a star to rate. You can leave written feedback afterwards. (We read all feedback.)

Jana Blagojevic
Authored by

Jana Blagojevic

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.

How Far Can a Male Cat Smell a Female Cat in Heat? Vet-Approved Facts & FAQs

How Far Can a Male Cat Smell a Female Cat in Heat? Vet-Approved Facts & FAQs

If you’ve noticed your male cat being more than eager to get outside lately, yowling at the door, and being quite the nuisance, it could be because he smells a…

Patricia Dickson
By Patricia Dickson ·
When Do Male Cats Become Sexually Active? Vet-Reviewed Signs & Recommendations

When Do Male Cats Become Sexually Active? Vet-Reviewed Signs & Recommendations

Kittens are cute, fluffy, and fun, but they grow up fast. Not only in terms of size and demonstrating more adult behavior traits, but also in mating habits. Se…

Annaliese Morgan
By Annaliese Morgan ·
Cat Reproduction & Mating: Vet-Approved Facts & Explanation

Cat Reproduction & Mating: Vet-Approved Facts & Explanation

Cat breeders and veterinarians aren’t the only ones who need to know about the feline reproductive system and mating behaviors. While the average cat owner doe…

Jessica Kim
By Jessica Kim ·
Will a Male Cat Mate With a Female if She’s Not in Heat? Vet-Reviewed Feline Behavior Explanation

Will a Male Cat Mate With a Female if She’s Not in Heat? Vet-Reviewed Feline Behavior Explanation

As cat parents, we know that female cats mate when in heat, but what about male cats? They don’t go into heat like females, so when do they mate? Will they mat…

Misty Layne
By Misty Layne ·

What Happens When a Cat Is in Heat? Vet-Verified Facts & FAQ

A cat’s heat cycle is an indication that she has reached sexual maturity, is fertile and can become pregnant. If this is your first time going through a heat c…

Christian Adams
By Christian Adams ·
What Happens When a Cat Is in Heat? Vet-Verified Facts & FAQ

How Long Are Cats in Heat? Vet Reviewed Facts & Info

It’s that dreaded time again. Your female cat is showing the signs that she’s going into heat, and you’re wondering how long it will last. During her estrous c…

Christian Adams
By Christian Adams ·
How Long Are Cats in Heat? Vet Reviewed Facts & Info

Will My Cat Calm Down After I Neuter Him? Vet Reviewed Behavioral Changes

Spaying and neutering are two common surgeries for cats, especially when they are still young kittens. Many new pet parents have questions about the procedures…

Christian Adams
By Christian Adams ·
Will My Cat Calm Down After I Neuter Him? Vet Reviewed Behavioral Changes

When Do Male Cats Start Spraying? Vet-Reviewed Facts & Tips

Male cat pee has a distinct odor, and when your male cat sprays outside the litter box, you know it without a doubt. In fact, both male and female cats spray,…

Rachel Giordano
By Rachel Giordano ·
When Do Male Cats Start Spraying? Vet-Reviewed Facts & Tips

How to Tell If a Cat Is in Heat: 6 Vet-Verified Signs to Look For

We love our cats, but if you own an unspayed female cat, as soon as she’s old enough, she will go into heat and you will surely notice some quite evident chang…

Kristin Hitchcock
By Kristin Hitchcock ·
How to Tell If a Cat Is in Heat: 6 Vet-Verified Signs to Look For

How Old Do Cats Have to Be to Get Pregnant? Vet-Reviewed Science & Facts

A cat's fertility and reproduction remain unrivalled as kittens grow into sexual maturity sooner than you might expect - as young as 4 to 6 months - meaning yo…

Christian Adams
By Christian Adams ·
How Old Do Cats Have to Be to Get Pregnant? Vet-Reviewed Science & Facts

Neutered vs. Unneutered Male Cats: Vet-Verified Differences Explained

When you have a male kitten, you must make an important decision about whether to get him neutered or not. It can be helpful to know the differences between ne…

Chelsie Frasier
By Chelsie Frasier ·
Neutered vs. Unneutered Male Cats: Vet-Verified Differences Explained

How Many Times Do Cats Go Into Heat? Vet-Approved Explanation (With Infographic)

Cats are seasonally polyestrous animals, which means they have multiple estrous cycles throughout the year when days are long (during spring and summer). The a…

Christian Adams
By Christian Adams ·
How Many Times Do Cats Go Into Heat? Vet-Approved Explanation (With Infographic)

Love Cats? So Do We! Join the Catster Community

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

You may opt-out at any time. View our Privacy Policy for more information.

The Catster site on a phone