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

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

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

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...

tabby mother cat feeding her kittens

Can Cats Be Sexually Attracted to Humans? Dispelling the Myths (Vet-Verified)

Our relationship with our animal companions has evolved through the ages. When we once considered cats to be mere mousers, we’ve since invited...

teenager cat owner cuddling with pet 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

More related

Close-Up Photography of Tabby Cats Laying

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...

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...

Gray cat laughing with mouth open

Why Do Cats Hold Their Mouths Open? 9 Vet-Approved Reasons

Cats have a special relationship with their five senses, which is partly behind the question of “Why do cats keep their mouth open?”...

domestics kittens playing

Do Cats Miss Their Kittens? Feline Maternity Behavior Explained

Cats are very protective of their kittens and are devoted mothers up until the kittens are weaned and ready to go to their...

Keep reading

Does Fish-Flavored Cat Food Cause Hypothyroidism? Vet-Approved Facts

Just like humans and dogs, cats can suffer from hypothyroidism, though it is quite rare. This endocrine disease is mainly due to the decrease in the secretion of thyroid hormones, which when in short supply, cause an imbalance in the...

cat eating food in the bowl

Why Is My Cat Drooling Thick Saliva? 12 Vet-Reviewed Reasons & Treatment

Cats are fascinating creatures, often leaving us in awe with their peculiar habits and quirky behaviors. However, as a cat owner, you might be alarmed to see thick saliva dripping from your feline’s mouth, making you wonder if it’s a...

Orange cat drooling

Can Cats Get High? Vet-Reviewed Facts on Effect and Safety

Marijuana may be legalized for recreational use throughout Canada, 23 U.S. states, and the Australian Capital Territory, but that doesn’t mean it’s something you can just leave lying around your home, especially if you have children or pets.1 While dogs...

marijuana

10 Best Kitten Foods in 2025 – Reviews & Top Picks

Congratulations on your new kitten! Now comes the hard part—choosing the best kitten food to keep them healthy and strong as they grow. Picking just the right food for your kitten is a challenge simply because there are so many...

Kitten eating food from bowl

Do Cats Lose Teeth as They Get Older? Vet-Reviewed Dental Facts & Tips

Is it normal for our feline companions to lose teeth when they get older? While some cats will lose teeth as they age, it’s definitely not considered normal. The most common reason for cats to lose a tooth is dental...

veterinarian checks mouth of the maine coon cat

Breakaway Collars Guide: Vet Reviewed Uses, Safety & Advice

No cat owner wants to consider the possibility of their kitty getting lost, but it’s always better to be prepared for the worst-case scenario. If your cat escapes your house or yard, you want to make it easy for anyone...

Breakaway Red Collar Cat

Can a Cat Ride on a Motorcycle Safely? Vet-Reviewed Facts & Tips

As a cat owner and frequent motorcycle rider, you may wonder if you can have your cat join you on a ride. We strongly advise against having your cat join you on a motorcycle ride, as this carries a lot...

maine coon cat in the carrier riding the car

Does Rain Kill Fleas? Vet Reviewed Effectiveness & Safety Explained

If your cat has ever had fleas, you’ll know what a pain it is to get rid of them. Trying to find the right method to get rid of fleas while avoiding poisonous pesticides is no joke! And if it’s...

cat in the window watching the rain