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

Cat in heat lying down

Perhaps you have been sitting on your couch, enjoying your favorite show, when you have heard the unmistakable sound of a cat howling or “caterwauling” outside. At first, you’re scared that there is an injured stray cat somewhere. The cat sounds like they are in pain. But what you could be hearing is the sound of a female cat in heat, and she shouldn’t be in pain.

In this article, we’ll discuss what it means when a veterinarian says a cat is “in heat”. We’ll also discuss if this means the cat is in pain and what they are feeling.

divider 2 cats

What Is a Heat Cycle?

When veterinarians refer to a cat’s heat cycle, we are referring to a female cat’s reproductive cycle and when they are able to become pregnant. Scientifically, this is referred to as estrus, and it can be thought of similarly to a human female’s menstrual cycle. Estrus is considered the period of sexual receptivity. In other words, the period in which a female cat will accept and breed with a male.

The entire cycle includes the following phases: proestrus, estrus, interestrus, diestrus, and anestrus. Estrus is the state of the cycle we refer to when we say a cat is in heat.

Cats will experience their first heat cycle around six months of age. And yes, cats can get pregnant during their first heat cycle! This is one of the reasons why getting cats spayed and neutered at an early age is so important. Cats are polyestrous animals, which means it has numerous heat cycles per year.

A cat may, but does not typically have bleeding or spotting during a heat cycle. They also do not ovulate (release an egg) unless they are bred.

Cats are also considered “long-day breeders,” which means they typically only go through heat cycles when there are 12 or more hours of sunlight. This means that most cats will be going through heat cycles in the spring and summer months.

bengal cat pressing its head against the chair during estrus
Image Credit: Azovsky, Shutterstock

Estrus

Estrus will last an average of seven days. As stated above, it can occur for the first time in a cat less than one year of age and typically will occur for a cat’s lifetime.

Because estrus is considered the period of sexual receptivity, a female cat will both display behaviors and try to prepare her body for pregnancy. Cats who are in heat want to attract a mate. Therefore, they are often much more vocal than usual—they can be heard howling as they try to attract a mate. Female cats will also release pheromones to try and attract a mate. This is why they may be seen rubbing on furniture or along doorways, walking with their tails up, and/or urinating to mark their scent.

If cats see or smell a male cat, they will often walk with their backs arched, tails held high, and “present” their back ends to the males. This lets the males know the female is in heat.

divider 2 cats

Is the Cat Howling Because of Pain?

In short, no. If the howling is just a cat in heat, she is not feeling pain. Rather, she is howling to attract a mate. If the howling you hear outside is not a cat in heat, you may want to consider contacting your local animal control.

If you recently adopted a kitten or took in a stray cat that starts to howl, consider that they may be experiencing their first heat cycle. If they are rubbing on household objects, walking with their tails held high, or constantly sitting at the back door howling, your female cat may just be in heat.

cat in pain while walking
Image Credit: Sherrianne Talon, Shutterstock

What if There Is Blood?

If the bleeding is coming from the vaginal area and occurs from a normal estrus cycle, then it is not typically a painful process. A lot of cats do not bleed during their cycle, so it is important to note when the bleeding started and how severe it is. If your cat has recently finished her cycle, is acting painful when you touch her abdomen, is lethargic, or is otherwise unwell, the bloody discharge may be a completely different problem. Please seek veterinary care if your cat is acting painful, lethargic, or sick.

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

Length of a Heat Cycle

Heat cycles will continue for a female cat’s lifetime unless they are spayed. As mentioned above, a cat will go through numerous cycles in a year. The exact number of heat cycles a cat goes through depends on the length of the days where you live and if a heat cycle results in a pregnancy or not. Veterinarians strongly recommend spaying as cats can be bred and have multiple litters per year. If you do not own a cat but you hear a stray (or multiple) howling outside, contact your local animal control or shelter. Many organizations will perform spays and neuters on outside stray cats to help control the population.

divider 2 cats

Conclusion

In conclusion, a typical heat cycle, or estrus, in a cat is a non-painful process. The howling, arched back, and behavior changes are normal for a cat wanting to attract a mate.


Featured Image Credit: rihaij, Pixabay

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

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 Much Does Cat Asthma Treatment Cost? 2026 Update

Just like people, cats can suffer from asthma. This is a narrowing of the airways and swelling of the lungs, making it difficult...

Most Popular Cat Names That Start With A for Your Amazing Pet

Whether you’re searching for the perfect cat name that starts with “A” to match your new pet to their siblings or prefer the...

How Much Do Bengal Cats Purr? What You Need to Know

Bengal cats usually purr just as much as other cats. However, they often purr very loudly; some will be more vocal than others,...

How Much Cat Litter Per Month Should You Use? Vet-Verified Facts & FAQ

There are many pleasant aspects of cat ownership, but litterbox duty isn’t among them. Still, it is essential to care for your cat,...

More related

Do Feral Cats Like Catnip? Vet-Approved Facts & FAQs

If you’ve ever watched a cat go crazy over catnip, you may be surprised to learn that some cats are completely indifferent to...

Where to Find a Healthy, Happy Purebred Kitten – Without the Risks

Last fall, Sarah fell in love with a tiny silver tabby online. In the photo, the kitten was curled in a wicker basket,...

Why Does My Cat Bite Me Unprovoked? 5 Vet-Reviewed Reasons for this Behavior

There’s no secret—cats try to get our attention, whether it’s good or bad. Because your little kitties have fangs, it won’t feel too...

How to Make a Cat Feel Safe? 10 Vet-Reviewed Behavior Tips

Every cat is unique: Some are fearless and bold, while others are calm and gentle. Still others cats tend to be nervous and...

Keep reading

10 Ways to Train Your Kitten: Vet-Approved Tips

Cats might like us to think that they’re untrainable, but the truth is that most cats enjoy short training sessions! The best time for them to learn is when they are still young, so beginning when your pet is a...

Tabby cat on white background

Can Cats Be Vegan? Vet-Reviewed Facts

People choose to be vegan for various reasons, including a desire to reduce their carbon footprint, a need to improve their health, and everything in between. As an autonomous person, you can choose to do anything that you wish regarding...

cat looking at bowl of raw veggies

How Much Wet Food Should a Cat Eat? Vet-Approved, Healthy Diet Advice

Many cat owners are unsure how much wet food their cat should eat; however, the answer is not as clear since it will all depend on your kitten. While there are recommendations, it is important to tailor the feeding amount...

cat eating wet tuna food

Can Cats Get Pink Eye? Vet Reviewed Facts & FAQ

A common eye condition cats can develop is conjunctivitis, more commonly known as pink eye. Every cat owner should know about the signs of pink eye and when to contact their vet. Although humans can contract conjunctivitis, they rarely catch...

Kittens First Vet Visit: What to Expect & How to Prepare (Vet-Approved)

The first days and weeks after welcoming a new kitten into your home are usually full of excitement as you become acquainted with your new companion. Getting to know your pet’s quirks and personality traits and bonding with them is...

vet checking up tabby cat

Will Barn Cats Kill Chickens? The Interesting Answer (Vet-Approved)

A barn cat isn’t a specific cat breed but a term used to describe a cat that usually lives outdoors, either as a pet or a feral animal, on agricultural properties, usually sheltering in buildings. They’re also known as farm...

chicken looking at the camera in the yard

Are Pepper Plants Poisonous to Cats? Vet-Reviewed Houseplants Examined

If you’re a cat owner, you may be wondering if pepper plants are poisonous to cats. It’s always best to make sure any plant around your home is safe for your cat, especially if your feline likes to roam in...

Catster_Are Pepper Plants Poisonous to Cats

Can Cats Eat Hay? Vet-Reviewed Nutrition Facts

While cats are often notoriously picky about cat food, they do seem to like nibbling on various plants and human foods. If you have hay lying around the house, don’t be surprised if your cat takes a bite or two....

Can Cats Eat Hay