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.

Why Do Cats Smell Other Cats’ Butts? Vet-Reviewed Behavior & Communication Facts

Gray cat sniffing another cat butt

Cats are meticulous, extremely clean creatures that act elegant and sophisticated most of the time. That’s why it’s a bit surprising to cat owners to see their cat smelling another cat’s butt.

While this might seem like weird behavior, it’s entirely normal for your cat. In fact, butt-sniffing is instinctual and is how cats communicate. You’ll also notice your cats sniffing each other’s chest and neck to get to know one another. Even cats that have lived in the same house for years will sniff one another to see what’s new.

divider 3 paws

Cats Have an Excellent Sense of Smell

Just like us, cats have five senses. However, unlike us, some of their senses are heightened. Cats have a sense of smell that far outweighs ours and is 14 times better.1

Cats also have an organ that humans don’t have; they have a Jacobson’s organ in their nasal cavity, which enhances their sense of smell. Unlike the cells in a cat’s nose that detect odors, the Jacobson’s organ can identify smells that humans cannot identify. For instance, a male cat can tell if a female is ready to breed by the pheromones she emits.

Also, newborn kittens can tell the difference between an ordinary cat and their mother by utilizing the Jacobson’s organ. So, it’s no wonder cats use their sense of smell for all sorts of things, including communicating with other cats.

Do Cats Communicate by Sniffing One Another’s Butts?

Tabby cat sniffing another tabby cat butt
Image Credit: Nils Jacobi, Shutterstock

When humans meet one another, they go about communicating in a variety of ways. They hug, shake hands, nod their heads, and have conversations with each other. Cats can’t replicate these greetings, but they have unique ways of communicating.

Usually, they first do a gentle head bump and sniff around the facial area. The pheromones released when doing this tell the cats much about one another. Information such as what kind of mood the cat is in and whether they’re aggressive, calm, ill, or healthy are revealed through those pheromones and determine how the cats react to one another in many instances.

So, why sniff each other’s butts? That concerns the anal glands, which secrete a substance only cats can smell. This odor is unique for every feline and shows cats if they’ve met before.

Cats are just as complicated as humans regarding their greetings and getting to know one another. Don’t expect your cats to sniff one another and automatically be friends. They may not get along or get along famously, just as we do in the human world.

divider 3 paws

Wrap Up

Cats are curious creatures, something you already know if you’ve ever owned one. However, sniffing another cat’s butt is a perfect way to get to know one another, and it’s not as weird as a cat parent might think.

So, the next time you see your cat sniffing another cat’s rear end, remember they aren’t being lewd, they’re just getting to know one another a little bit at a time, and there’s nothing wrong with that.


Featured Image Credit: Nils Jacobi, Shutterstock

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

Why Do Cats Poop When They Are Scared? Cat Behavior Explained

Fight and flight are the two well-known responses to fear. It turns out, however, that it’s a lot more complicated than that! A...

Why Is My Cat Throwing Up Pink Liquid? Our Vet Explains 10 Reasons

It’s a noise that can’t be unheard. It will wake you up in the middle of the night and rattle your bones. Your...

Is Your Cat Not Using the Litter Box? 6 Vet-Approved Causes

Is your cat not using the litter box? Use this checklist to see what problems are at play, as you need to take...

10 Best Cat Food Bowls in 2025 – Reviews & Top Picks

While choosing a cat food bowl should be a relatively easy task, the abundance of options can make things a bit difficult. Cat...

More related

Are Ferns Toxic to Cats? Vet-Verified Facts & FAQ

Many of us have ferns in our homes and gardens. Garfield, the fictional cat, was known to be a firm favorite of the...

Pros & Cons of Using Cat Diapers: Is It Right for Your Cat? Vet-Reviewed Info

There are a few reasons that a cat can wind up needing to wear a diaper, from having incontinence to spraying or from...

19 Important Cat Terms Every Cat Owner Should Know (2025 Update)

Sometimes, owning a cat seems to require you to speak a completely different language. There are quite a few cat-specific terms that you...

A Green Alternative to Cremation: We Talk With Jerry Shevick of Peaceful Pets Aquamation

There’s no mistaking the passion Jerry Shevick has for Aquamation and serving the pet community. “We’re going to do the right thing by...

Keep reading

Why Do Cats Fake Sleep? 8 Interesting Reasons

Cats sleep an average of 12 to 16 hours a day, which may seem like a lot of time compared to humans, but the busy little felines need a lot of rest. However, have you ever noticed your cat stretched...

cat-sleeping-with-their-face-down

9 Best Cat Beds for Anxiety in 2025 – Reviews & Top Picks

Cats can be particular about their bedding, but for cats with anxiety, choosing the right bed can ensure your cat has a sense of safety and security. Cozy, anxiety-reducing beds can be a fantastic tool in helping improve your cat’s...

Ragamuffin cat hiding

Does Cornstarch Kill Fleas on Cats? Vet Reviewed Effectiveness & Alternatives

Preventative flea and tick medications are highly effective at eliminating these pests, but some owners prefer “natural” home remedies to keep fleas and ticks away. Cornstarch is a fairly common and popular method, along with other powders, but cornstarch is...

Cornstarch in a spoon

12 Best Cat Foods in 2025: Vet-Approved Reviews & Guide

Proper nutrition is just as essential for your cat as it is for you. Like with humans, a poor diet for cats can lead to issues like malnutrition, weight gain, and certain diseases. It can also have a negative effect...

siamese kitten eating from a stainless bowl

Why Does My Cat Carry Around a Toy and Meow? Cat Behavior Explained (Vet-Reviewed)

If you have a cat who likes to carry around their toy and meow, you are probably wondering what’s up with this strange behavior. Cats can do curious things, and this might be one of them! Should you shrug it...

Ginger kitten with white chest

10 Types of Veterinary Specialists & What They Do: Vet Approved Guide

Many cat parents may think their local veterinarian is the only option for their cat’s well-being and health, but this is not the case. Veterinary medicine and pet care operate in a similar way to human medicine. There is primary...

cat owner talking to the vet while examining the cat

15 Vet-Verified Reasons Your Cat Sleeps Under the Bed: With Tips to Manage Anxiety

Do you ever wonder why your cat likes to sleep under the bed? There are actually several reasons why cats like to do this. In this blog post, we will discuss the 15 most common reasons why cats like to...

Cat Sleeping

Why Are My Cats Whiskers Breaking Off? 5 Vet-Reviewed Possible Reasons

Have you ever worried about a few split ends in your hair? If it’s just an occasional strand, probably not. But imagine that every time you brush your hair you end up with a handful of broken hairs. That’s when...

Long white whiskers and nose of a gray cat