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.

Do Cats Know When You’re on Your Period? Vet-Verified Facts & FAQ

cat resting with owner on sofa at home

You spend a lot of time with your favorite feline, so they’ve seen you in all kinds of states. From exhausted to joyous to not feeling well, kitties see us at our best and worst. For women with cats, this means your pet most likely sees you dealing with your period every month. But do cats know when you’re on your period?

The answer is most likely yes, they do. However, they almost certainly don’t really know what it means. They will be aware of the hormonal changes affecting the body during menstruation, and know that something is up.

divider cat faces 2 oct 2024

How Do Cats Know You’re on Your Period?

Canines may be known for having exceptional noses, but it turns out felines have an even better sense of smell than dogs do! Where most dogs have around 100 million olfactory receptors in their noses (with the exception of Bloodhounds, who have approximately 300 million!), cats have approximately 200 million of these receptors. So, our kitties have phenomenal senses of smell.

That ability to scent out the world around them so well means that your cat can smell what’s happening when you’re on your period, and we don’t only mean they can smell blood. A feline’s sense of smell is amazing; they can even smell hormonal changes in the body in the form of pheromones. So your cat can smell that something about you is different. This difference won’t be so significant that they suddenly don’t recognize you, though; you’re still you, even if you smell a bit different.

orange cat smelling something
Image Credit: MariyaL, Shutterstock

Do Cats Act Differently When You’re on Your Period?

Whether a cat acts differently around you while you’re on your period depends largely on the cat, as well as how you are feeling or behaving. Some felines notice you smell a bit different and move on with their lives, while others may be more suspicious of change. How might a cat behave when you’re on your period?

If your cat isn’t one to go on with life as usual, then they might become clingier than usual. Why might they get clingy? One reason is they can smell blood; blood usually means an injury of some kind, so your cat may be trying to nurse you back to health with their clinginess. Another reason for this behavior is your cat senses you’re in pain. Felines are incredibly observant and can recognize (and respond) to human emotions. So, if your pet realizes you aren’t feeling well, they may cuddle up to make you feel better.

Cats may also get a bit clingy if you don’t pay enough attention to them. When you’re on your period, you may want to do as little as possible, including play with the cat. If your pet feels like they’re being ignored, they may well decide to make you pay attention to them by clinging. Finally, cats may get clingy during your period because of something you’re doing. You may be wearing cozy clothing or hugging a hot water bottle, making them want to snuggle up, or you may be consuming more snacks than usual, which means there are more chances for them to sneak some tasty treats.

Another possible behavior change in felines while you’re on your period is them becoming protective of you. Your cat may sense you’re a bit more vulnerable than normal during this time and decide they need to lay on you and “guard” you to help keep you protected.

cat rubbing its head to owner's head
Image Credit: Kristi Blokhin, Shutterstock

Why Don’t Cats Get a Period?

In most cases, our pet cats have been spayed, so they definitely won’t get a period. But entire (unspayed) cats don’t get one either. This is because cats are induced ovulators, meaning that they only ovulate if they are mated. When humans have a period, it is because the lining of the uterus has become thickened to prepare for a potential pregnancy, but when ovulation goes by and the egg is not fertilized, that thickened lining is shed, which is our period. Cats do not go through this process, so they do not get a period.

divider 2 cats

Final Thoughts

Your cat most likely can tell when you’re on your period, but though they detect the changes your body is going through, they won’t really understand what’s going on. However, this doesn’t mean their behavior won’t change around you during this time. Depending on your pet, you may find your kitty is clingier than is typical when you’re on your period or even more protective of you. We say enjoy your purring heating pad as they cozy up to you!

Sources
 

Featured Image Credit: U__Photo, Shuterstock

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

25 Top Cat Movies for Kids: The Purrfect Picks in 2025

Cats are fascinating and interesting animals, so it’s no surprise that there are numerous movies that feature them. Many films with cats are...

10 Best Lightweight Cat Litters in 2025 – Reviews & Top Picks

Finding the right cat litter can truly change your life. It can improve the smell of your home, reduce messes, and make scooping...

How Long Can a Cat Be in Labor? Vet-Approved Feline Birth Facts

Most veterinary professionals recommend getting your cat spayed or neutered to help control the feral cat population, reduce disease transmission between cats, and...

Sokoke Cat Breed: Info, Pictures, Care & More

The Sokoke is a “natural” breed of cat. In other words, it developed mostly without the intervention of people. However, today, they are...

More related

My Cat Ate Garlic Bread! Here’s What to Do (Vet Answer)

Garlic, while responsible for making so much of our food taste delicious, is highly toxic to cats. What should you do if your...

Can Cats Eat Dandelions? Vet-Approved Nutritional Benefits & FAQ

If you see your cat nibbling on common dandelions (Taraxacum officinale), it can be easy to want to rush them straight to the...

How Much Do Cat Vaccines Cost? 2025 Price Guide

One important task that we can do as cat parents is to make vaccinations a priority. An initial round of vaccinations will keep...

What Happens When Cats Fall Out of High Windows? (Vet-Answer)

Cats, despite being agile creatures, can fall out of windows by accident. High-rise syndrome, also called falling cat syndrome, is a veterinary term...

Keep reading

Is Weed Killer Safe for Cats? Vet-Reviewed Facts & FAQ

Weed killers are ideal for keeping your lawn pristine, but are they safe for the kitties passing through? The answer is that it depends on the type of weed killer you’re using and how you use it. Some products are...

man spraying weed killer in a red container

Why Do Cats Show You Their Butt? 6 Vet-Reviewed Reasons

Although cats have lived with humans for millennia, they still do many things that leave us feeling puzzled or confused. One behavior that can surprise or shock new cat owners is a cat’s tendency to show their butt when they...

black cat enjoying when owner scratch at the base of his tail showing the butt

7 Most Annoying Sounds Cats Make: Possible Causes & Prevention Tips

Cats are adorable pets and can be some of the best companions and roommates. They look cute and can make cute sounds. In fact, some studies show that a cat’s purring may have therapeutic effects 1. However, there’s no denying...

Ginger tabby young cat sitting on a wooden floor looks up

Can Cats Eat Pomegranate? Vet-Reviewed Facts & FAQ

One of the fun parts of owning a cat is giving them treats now and again. Though we stick with cat treats most of the time, sometimes it’s tempting to give them a bite of our food. But how healthy...

Can Cats Eat Pomegranate

10 Best Cat Foods for Picky Cats in Canada in 2025: Reviews & Top Picks

Having a cat that’s a picky eater can be stressful. Your pet deserves the very best nutrition, but this can be challenging when your cat seems to turn their nose up at everything that you put in their bowl. These...

cat eating

Can Cats Eat Hazelnuts? Vet Approved Nutritional Facts & FAQ

Hazelnuts are a great addition to our human diet for being a source of healthy fat that is loaded with nutrients and antioxidants. Whether you are snacking on a handful of hazelnuts or are enjoying the delicious forms of hazelnut...

Can Cats Eat Hazelnuts

Will a Cat Litter Deodorizer Work? Vet-Approved Facts & Info

There’s no doubt that people everywhere love cats. In fact, they outnumber dogs in some countries. However, there’s one thing that most people find unappealing about cats: their stinky litter boxes. Indeed, few things are more offensive to the nose...

man cleaning smelly litter box

How to Shave a Cat’s Bum: 6 Vet-Approved Steps

If you’re starting to notice an unpleasant odor following your cat, and if you’re starting to see unpleasant remnants in their nether regions, it might be time for a sanitary trim. It’s not a fun process for anyone, but when...

cat being groomed and shaved at a salon