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

8 Best Cat Foods for Picky Cats in the UK in 2025: 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...

Ehlers-Danlos Syndrome in Cats: Causes, Signs, & Treatments

Ehlers-Danlos syndrome in cats is a specific group of disorders affecting the connective tissue. They are typically characterized by loose and stretchy skin...

Can Cats Eat Green Beans? Vet-Verified Nutritional Guide

Being a cat owner comes with a unique set of challenges. Not only are cats a bit high-strung at times, but their diets...

Is It Illegal to Drop a Cat Off at a Shelter? Consequences & Safer Options

The decision to take on a pet cat should not be made lightly. Owning a cat, while being one of the most loving...

More related

Is Salt Toxic to Cats? Vet-Reviewed Dangers & Limits

If you’re a person who loves flavorful food, you probably like to add a bit of salt to every meal. Salt has been...

Can Indoor Cats Get Ringworm? Vet-Reviewed Signs, Causes, Diagnosis & Treatment

If you’re a cat parent, you know how important it is to keep your feline’s health in good shape. Since ringworm is a...

Is Your Cat an Old Soul? Feline Myths 

Hi, I’m Dr. Lauren! Read my introduction to learn more about me and my two adventurous cats, Pancake and Tiller. This week’s topic...

15 Weird Cat Behaviors That Stump Kitty Parents: Facts & Explanation

Cats are comical in some ways and confusing in others, and they have some undeniably curious habits. Often, it’s worth the effort to...

Keep reading

Do Cats Pee & Poop at the Same Time? Vet-Reviewed Feline Anatomy & Behavior Explained

You know you’re a real cat owner when you start to fuss over your pet’s grossest habits, like their bathroom use. But knowing what’s normal for felines can actually help you understand your cat’s behavior, including the way that they...

Tabby cat sitting in a litter box

Can Cats Eat Lentils? Vet-Reviewed Nutritional Facts & FAQ

We’ve all heard that curiosity killed the cat, and that saying has a foundation in reality; cats explore their world with their mouths, and ingesting foreign substances and objects can be fatal! Lentils are a superfood for humans that packs...

Catster_Can Cats Eat Lentils_v1_Dec 3 2024

Birman Cat Health Problems: 14 Common Issues

If you’re a Birman parent—lucky you! These gorgeous purr-machines always win hearts with their beauty and affectionate natures. Cat parenting does come with many worries, though—especially if your furbaby gets ill or you’re concerned about congenital illnesses. In this post,...

Catster_Health Problems of Birman Cats

Signs a Cat is Dying: 11 Vet-Verified Changes to Look For

It’s the moment that no cat owner wants to contemplate, but as our feline friends get older or maybe develop an illness, their deteriorating health can begin to show signs your cat is dying. As difficult as this time can...

tired or sick cat

Why Does My Cat Paw Under The Door? The Reasons For This Behavior

If you are sitting in your room with the door closed and hear a scratching sound, chances are you’ll know what’s causing it if you own a cat. A small furry paw from under your door may be a common...

cat paws under the door

How to Socialize a Shy Cat Who Frequently Hides: 7 Vet Approved Tips

If you are a cat parent who constantly struggles to get their fur baby out of their secret hiding spot, you have come to the right place. The good news is that it is entirely possible to help a shy...

scared cat hiding behind the door

Cat Dander vs Dandruff – How to Tell Them Apart (With Pictures)

With so many people having cat allergies, there’s a lot of talk about cat dander. However, many people aren’t really aware of what cat dander is. On top of that, some people assume that if their cat has flaky skin,...

Cat Dander vs Dandruff Side By Side

My Cat Ate Cheese: Vet Approved Advice on What to Do

Cats are curious creatures that love to explore their environment. They often stumble upon various human foods on their adventures, which will likely result in tasting them. However, certain foods could be toxic or dangerous to cats. One common human...

My Cat Ate Cheese