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.

Can You Spay a Cat in Heat? Risks & Precautions

cat neutered

Most veterinarians generally recommend that a kitten be spayed before her first heat. But that can get tricky since kittens don’t go into heat on anyone’s schedules except their own. For this reason, most shelters will do what’s called a “pediatric spay,” when they spay the kitten as young as they can to avoid the messiness of her going into heat before they can spay her.

However, most pet parents don’t always think of that when getting a kitten. So, it might slip your mind, and before you know it, she’s in heat! Of course, you can spay a cat who is in heat, but when you do, the surgery becomes more complicated. Read on to learn more.

divider cat paws 2 oct 2024

What Happens When Your Cat Is in Heat?

When your cat is in heat, her body produces hormones that tell her it’s time to mate. This flood of hormones will make your cat feel different. For example, she may become more affectionate vocal, offer herself in the mating pose to you, spray urine to indicate to nearby males that she’s ready and willing, and may even try to escape her home to find a mate.

Once a cat has had her first heat, she will continue to have heats every few weeks until she becomes pregnant or the cat mating season ends. That means that if you leave her intact, she will display risky behaviors to attract a mate frequently for almost through spring, summer, and autumn.

norwegian forest cat peeing in the garden
Image Credit: Elisa Putti, Shutterstock

A cat who is in heat can put herself in great danger because of her heat, and it’s best for her safety that she is spayed before she can have her first heat. Spaying also becomes infinitely more convoluted when a cat is in heat. The hormones that cause your cat to go into heat also cause blood to rush to her uterus. When the reproductive tissues are engorged with blood, it is much more difficult to remove them. Not only are they more prominent, but the tissues are also more prone to tearing or rupturing, which can be dangerous for the cat.

Though most veterinarians are skilled in spaying procedures both in and out of the heat, the procedure will likely cost more if your cat is in heat since the veterinarian will need more supplies and time to do the procedure correctly.

What Happens When Your Cat Is Spayed?

Cats who undergo a spaying procedure have their uterus and ovaries removed.  This removes the production source of the hormones that induce heat and renders her sterile. She will have to be placed under general anesthesia. She’ll have to fast the night before to prepare for the anesthesia. A small incision will be made on her abdomen, usually just below the umbilicus where her umbilical cord once connected. Both ovaries and her uterus will then be removed from her abdominal cavity, and the incision will be closed with sutures.

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

Is It Dangerous to Spay a Cat in Heat?

The risk factor of spaying a cat does increase when she is in heat. However, the risk remains negligible with the intervention of modern medicine. Still, the increased risk, supplies, and time must be taken into account when determining the price of the operation. So, for your wallet’s sake, it’s best not to let your cat go into heat.

divider cat faces oct 2024

Reasons Why You Should Spay Your Cat

Most veterinarians recommend that all non-breeding cats be sterilized, male or female. The most obvious benefit of spaying your cat is protection against unplanned pregnancy; there is no substantial scientific evidence that indicates there is a behavior or health-related reason to have your cat have one litter of kittens before she is spayed. That’s an old wives’ tale.

For female cats, in particular, spaying is recommended because it eliminates the risk of ovarian and uterine cancers. It also lowers the risk of mammary cancer, which is the second most common cancer diagnosed in cats. However, once a cat has reached 2 1/2 years of age or so, the procedure no longer protects a cat against breast cancer.

Additionally, unspayed female cats can develop pyometra, a fatal uterine condition that will require surgery to resolve.

Further, allowing your cat to go into heat means that you’ll have to deal with all the behaviors associated with heat. For example, spraying and incessant vocalizing are usually the most common complaints pet parents have regarding cats in heat. But many pet parents find it difficult or impossible to keep their cats inside when they go into heat.

angry cat meowing outdoor
Image Credit by: Piqsels

Your cat will want to get outside to find a mate; everything in her body tells her that she has to do that. So, her mind will be less on your opinion of it and more on what nature has called on her to do.

This behavior will continue every few weeks until she becomes pregnant. Additionally, her demeanor and scent will attract tom cats to your property, who may destroy things or otherwise be nuisances as they try to reach your female cat.

Finally, spaying your cat helps reduce the overpopulation of stray and feral animals. Cats are considered one of the most devastating invasive species in the world. Their presence outside of loving, indoor homes can wreak havoc on the local ecosystems. Local flora and fauna aren’t always equipped to introduce cats to their environment, and overbreeding and dumping put a lot more cats into the ecosystem than the system is equipped to deal with anyway.

divider cat faces oct 2024

Final Thoughts

Spaying your cat is never fun. Even though it’s considered a relatively routine procedure for veterinarians, it can be nerve-wracking to leave your kitty in someone else’s hands. Still, a night of missing her is nothing compared to what you’ll have to deal with if she gets pregnant.

Spaying your cat isn’t just good for your cat, though. It’s good for your property, your family, and the environment.


Featured Image Credit: Andrii Medvednikov, Shutterstock

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

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

Do Neutered Cats Still Mate? Vet-Approved Facts

Neutering a cat involves surgically removing a cat’s reproductive organs to prevent them from reproducing. It is done by a veterinarian by the...

Close-Up Photography of Tabby Cats Laying

Can a Cat Get Pregnant if She’s Not in Heat (What You Need to Know!)

If your cat has not been spayed, you may be concerned that you’ll soon have to deal with a pregnant mother and, eventually,...

beautiful pregnant cat

What Do Cats in Heat Sound Like? (With Audio Examples)

Unspayed female cats will go into heat a few times a year. During this period, the feline will be receptive to mating. To...

tricolor cat in heat

Cat Private Parts: Vet-Verified Facts & FAQ About Feline Genitals

While most of us like to show our cats the same privacy we hope for ourselves when it comes to our pet’s private...

A closeup shot of a brown cat licking its genital

More related

tabby mother cat feeding her kittens

Can a Litter of Kittens Have Different Fathers? Vet-Verified Facts & FAQ

Most of the time, littermates resemble each other a great deal, sharing colors and body shapes at the very least. But sometimes surprises...

Cat in heat lying down

What Do Cats Feel When They’re in Heat? Vet Explained Pain, Cycles & Estrus

Perhaps you have been sitting on your couch, enjoying your favorite show, when you have heard the unmistakable sound of a cat howling...

beige fawn maine coon cat on the move walking through the garden

Why is My Cat Pacing? 8 Vet-Verified Reasons & How You Can Help

It can be worrying if you suddenly start to notice that your cat is pacing. If this turns into a regular occurrence rather...

veterinary surgeon checking bandage on cat stressed after spaying

Spay & Neuter Awareness Month: How & When Is It Celebrated?

February is spay and neuter month. During this month, many pet organizations promote spaying and neutering your pets to avoid overpopulation. Furthermore, spaying...

Keep reading

How to Make a Cat Feel Better After Vaccines: 3 Vet-Approved Tips

Vaccines are vital for any cat’s long-term well-being and quality of life, but for a short period after receiving them, shots can cause several irritating side effects. Mild pain is typical, as is mild tiredness. Depending on your cat’s personality...

smiling female veterinarian petting a cat

Are Petunias Poisonous to Cats? Vet Approved Houseplants Examined

Cats are known for being curious and getting into things that may not necessarily be great for them. After all, they are animals, right? Not too different from curious pups, rabbits, or even pet guinea pigs. It’s in their nature...

Catster_Are Petunias Poisonous to Cats

Can Cats Eat Rice Krispies? Vet Approved Facts & FAQ

Rice Krispies are a beloved breakfast cereal made from puffed rice. Kids love this sweet food for its fun popping sound. Some may want to share this tasty treat with their kitty, but is this a safe snack for cats?...

Can Cats Eat Rice Krispies

Why Is My Cat Scratching the Floor? 3 Vet-Reviewed Reasons

Cats are known for their quirky behaviors, and one of them, unsurprisingly, is scratching. It’s a natural behavior that cats exhibit to mark their territory and to maintain their claws. However, if you notice your cat scratching the floor, it...

kitten scratching under the door

Can Cats Eat Sunflower Seeds? Vet-Verified Nutrition Facts & Considerations

Sunflower seeds are the edible gifts of the sunflower. Not only are they tasty, but they are nutritious and considered to be one of the healthiest snacks around. But can your beloved feline eat them, too? The quick answer is...

Can Cats Eat Sunflower Seeds

Diamond Naturals Cat Food Review of 2025: Recalls, Pros & Cons

Review Summary Diamond Naturals makes healthy yet affordable food for pet owners. The company makes a wide range of both dog and cat food, including recipes for specific ages and breeds of animals. One of its most popular ranges is...

Diamond Naturals Cat Food

Why Does My Cat Sleep at My Feet? 6 Vet-Reviewed Reasons Behind This Behavior

Cats love to nap, with some spending more than 15 hours per day asleep. But cats can be pretty particular about where they snooze. Most have favorite places they return to over and over when it’s time to get some...

Bengal cat hugging their owners feet to sleep

10 Best Hypoallergenic Cat Shampoos of 2025 – Reviews & Top Picks

Just like us, our cats can have sensitive skin. If your cats can’t handle all the chemicals and fragrances that lots of companies use in their products, you might be on the search for something much more natural. Luckily, there...

tabby cat taking a bath