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.

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

Ginger tabby young cat sitting on a wooden floor looks up, asks for food, meows

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 cycle with your female cat, you may be wondering what on earth has possessed them! After all, their entire personality has done a 360. And saying that really isn’t a far stretch. Their personalities can change dramatically! Oftentimes, kitties in heat are incredibly affectionate and vocal.

So, if your cat is going through heat, we’ll give you a little rundown of what to expect.

divider 2 cats

A Cat in Heat: You Can’t Miss It

There’s nothing subtle about your cat when she is in her heat cycle. From yowling to rubbing, your gal may turn into an unrecognizable creature for several weeks as she attempts to find a mate. So, first, let’s get into the physical cues you can look for—then, we can explain the process.

Vocalizations

Have you noticed an extreme increase in your cat’s vocalization? If so, that is completely to be expected. Often referred to as ‘calling’, it’s one of the more obvious signs of heat in cats, and can be very challenging to deal with if you haven’t experienced it before.

Often, your female will start meowing and yowling loudly in the wee hours of the night when you are already asleep.

cat-meowing-or-chirping-by-the-window
Image Credit: sophiecat, Shutterstock

Extra Affectionate

Your cat might already be lovable and wonderful. But have you noticed an increase in their affection? If so, your cat might really be in heat! Except for vocalizations, extra affection is one of the most common behaviors females exhibit in heat.

Spraying

It might surprise you to learn that your female cat can spray urine on vertical surfaces just as efficiently as a male during high hormonal periods, others may just urinate more frequently. These cats do it as a way to attract a mate, letting them know they are ready and willing, as the urine contains pheromones and hormones.

divider 2 cats

What to Know About Heat Cycles

Cat Heat Cycle
You are free to use this image but we do require you to link back to Catster.com for credit

Crazy enough, kittens can have their first heat cycles, and therefore become fertile and can get pregnant, from as early as 4 months old. One heat cycle can last several days to a few weeks. If a cat is not mated and becomes pregnant, or spayed, these cycles will repeat around every 2-3 weeks during the breeding season (typically February to October in the northern hemisphere, but indoor cats can cycle all year round). Signs like yowling can indicate pain, so some experts speculate that cats can feel uncomfortable at times. But yowling and spraying are also a female cat’s attempt to let a male know that she is ready to mate.

What Can Be Done About a Cat in Heat?

The solution to preventing your cat from going into heat is always getting them fixed, unless you are planning to breed from them. If this is your first time owning a cat, you might not understand the importance of it.

Here are some reasons to get your cat fixed:
  • It cuts down on the homeless cat population
  • It eliminates heat cycles
  • It reduces undesirable behaviors
  • It stabilizes their mood
  • It reduces the risk of mammary cancer

When to Spay a Cat

Most veterinarians recommend getting your cats fixed when they are approximately 4 months old. This is typically the time right before your cat reaches sexual maturity, so getting them fixed during this time can alleviate a lot of the issues.

However, every situation can be different. Your vet might recommend waiting, depending on a few factors. So always listen to a veterinary professional and schedule accordingly. If you’re having trouble affording spay or neuter, there are plenty of low-cost options at local rescues, shelters, and other similar organizations.

a small kitten getting examined at the vets clinic
Image Credit: Akimova-Tatiana, Shutterstock

Can a Cat in Heat Get Fixed?

A cat can be spayed when in heat but most veterinarians prefer to wait until the end of the heat cycle. The reason for this is that there is increased blood flow to the uterus and ovaries when a cat is in heat, and so there can be an increased risk of complications such as bleeding during or after the surgery. Speak to your veterinarian for advice about the best time to spay your cat.

Can You Get a Cat Fixed if She’s Pregnant?

It is also possible to spay a cat when she is pregnant. Some veterinarians will fix a cat if she is pregnant with a litter of kittens, but others won’t because it will terminate the pregnancy. It is a matter of the vet’s personal preference and beliefs.

Some consider it a preventive tool in some situations to prevent further unwanted kittens in the world. Others may feel that it is wrong to terminate the pregnancy and will want to wait until the cat has given birth to spay her. So, if you have any questions about that, it’s best to contact your vet and discuss it with them 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!

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

divider 2 cats

Reasons to Spay a Cat

If you need other reasons as to why spaying cats is a good idea, take a look at these facts and considerations.

Animal Shelter Statistics

If you ever look at animal shelter statistics, it is staggering. It will break the heart of any animal lover. In a single year, 6.3 million pets and homeless animals enter shelters. 3.2 million of these animals are cats.

Of those 3.2 million cats, 530,000 cats are euthanized. So, you can see how this is a substantial problem, with so many cats being homeless or ending up being euthanized. That isn’t even counting the feral cats—estimated at around 32 million in the U.S.

kittens in a cage of a shelter for homeless animals
Image Credit: Okssi, Shutterstock

Danger of Feral Cat Populations

Feral cat populations are a real problem all across the globe. Not only is it so sad that so many cats are homeless without proper nutrition or medical care, but unneutered female cats can have two or three litters a year. This leads to rapidly increasing numbers of feral cats and kittens.

A single pair of cats and their offspring can produce as many as 420,000 kittens over the course of 7 years. If you think about it—you can see how it really adds up. Feral cats can spread infectious diseases and parasites, and most live short, tough lives.

Another problem with feral and outdoor cats is their impact on the wild bird population. On average, they are believed to kill upward of 2.4 billion birds per year. As predators, cats are ruthless to our beautiful native birds and can wreak havoc on the natural ecosystems this way, even if the cats are just looking for a food source.

divider 2 cats

Conclusion

So, our point is, if your cat is in heat, don’t let her escape and get her fixed as soon as possible! Your vet will most likely want to wait until after the cycle is over due to increased blood flow to the uterus during the heat cycle. However, they will schedule a good time for them to come in for the surgery.

Now you know what to expect if your cat is in heat. If you haven’t yet, make that phone call to your vet today to see about getting her fixed.

See also:


Featured Image Credit: savitskaya iryna, 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

3 Responses

  1. WE NEED MORE SPAY AND NUETER CLINICS. MY CAT IS IN HEAT.I CALLED 4 LOW COST CLINICS THEY ALL SAID NEXT MONTH. IT BREAKS MY HEART HOW LONG THATSHE WILLSTAY IN HEAT

    1. Hi Angela, when in heat cats are receptive to males and the mating act will stimulate them to ovulate, so cats in heat can be pregnant from more than one male. But once the embryos are implanted in the uterus the cat will no longer be receptive to males. If a pregnant cat shows signs that resemble heat this could be an indication of something more going on, we recommend you to consult www.pangovet.com to go over the details of your case and get some guidance.

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

Boxie® Litter Review 2026: A Detailed Look

Boxie® is a revolutionary cat litter brand started in 2009 by cat lover Josh Wiesenfeld. Wanting a better litter box experience for both...

Will a Humidifier Help a Cat with Congestion? Vet Reviewed Facts & FAQ

We all have childhood memories of having a cold, being congested, and our moms dragging out and plugging in the humidifier to loosen...

Why Did My Cat Lose His Voice? 5 Vet-Reviewed Potential Reasons

It’s normal for us to lose our voice or feel hoarse when we’re sick or after yelling at a party or concert. It’s...

Can a Dog Get a Cat Pregnant? Vet-Reviewed Facts & FAQ

While dogs are, without a doubt, man’s best friend, they can also exhibit strange behavior. They eat plants from the garden and sleep...

More related

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...

How to Get the Best Cat Care While on Vacation: 5 Vet-Approved Options to Consider

As much as we’d love to spend every moment possible with our cats, most of us can’t be home 24/7/365. There will come...

Can Cats Eat Meatballs? Vet-Reviewed Dangers & Facts

Spaghetti and meatballs are a classic comfort food and a childhood favorite meal for many people. If you and your family regularly enjoy...

Can Cats Eat Peppermint? Vet-Reviewed Facts & Precautions

Peppermint is a common ingredient in many things, from food to skincare. It’s not unlikely that your cat will come into contact with...

Keep reading

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. Sexual maturity and mating desires start early in the feline community. The...

male cat lying down

Right or Left? Do Cats Have a Dominant Paw? Vet-Reviewed Science & Info

We humans can get hung up on the strangest things! For example, only about 60 years ago, left-handed people were considered “sinister” (a term derived from a Latin word meaning “on the left side,” which was equated with evil). Lefties...

cat reaching its paw out

Can Cats Eat Hard-Boiled Eggs? Vet-Verified Nutrition Facts & FAQ

It’s difficult not to treat your furry friend to a little piece of your meal, but there’s always some concern as to whether our cats can indulge in the same foods that we do. That concern is amplified with foods...

Can Cats Eat Hard-Boiled Eggs

8 Best Cat Foods for Picky Cats in the UK in 2026: Reviews & Top Picks

Cats generally know what they do and don’t want, and not much can change their minds. This can pertain to where they want to sleep, who they want to cuddle with, and what they want to do during their day....

siamese kitten eating from a stainless bowl

10 Sounds Cats Love the Most & Why They Like Them (Vet-Verified)

Cats are able to hear frequencies up to 85,000 Hertz (Hz), while humans can only hear frequencies between about 20 and 20,000 Hz1. No wonder there are certain noises that can send cats racing! So then, what is music to...

Cat listening to radio

My Cat Coughing Sounds Like a Duck, What’s Wrong? Vet-Verified Facts

If your cat has recently been coughing, you may wonder if something is going on that requires a veterinary examination, particularly if your companion’s cough sounds like they’re channeling a duck. The sounds cats make when coughing can often be...

A cat with this mouth open, about to vomit.

8 Best Cat Foods in Australia of 2026 – Reviews & Top Picks

One of the most important things that you can do to help ensure that your cat lives a long and healthy life is to feed them a high-quality diet. As the old saying goes, “You are what you eat,” which...

persian cat eating dry food from bowl

IAMS vs Purina Cat Food: Our 2026 In-Depth Comparison

Picking the perfect food for your feline seems like a pretty easy task. At least until you walk into the local pet store and see how many options there are. Even a walk down the pet aisle at the nearest...

IAMS VS Purina Cat Food

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.