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

Masters of Sleeping: Where & How the Wednesday Cats of Catster Snooze

Welcome to the Wednesday Cats of Catster! Every month, we ask our cat-loving Catsters to weigh in on a new topic. This week,...

Are Lilies Toxic to Cats? Vet-Verified Facts & Safety Tips

Renowned for their large trumpet-like dazzling flowers and a robust scent, lilies are elegant and strikingly beautiful – a delightful addition to a...

Can Cats Eat Cicadas? Vet-Reviewed Health Concerns

As any cat owner will attest, cats are expert hunters. Their instinct for preying on small, fast-moving objects is baked into their DNA....

Next-Level Cat Pampering: The Two-Year DIY Feline Subway Station

For anyone who has proudly admired their towering cat tree, spent countless hours erecting an impressive collection of ramps, shelves, and cat beds...

More related

How Musician Cat Man, Adam Myatt is Saving Feline Lives

Hobbies and interests have a way of sometimes taking on a life of their own, usually for the better. Such is the case...

Do All Cats Knead? Vet-Approved Behavior Explanation

Whether you think it’s adorable or find it utterly annoying, you’ve likely caught your cat kneading at some point. This behavior usually takes...

Cat Utopia: How To Design The Perfect Place For Your Feline

If you’ve owned cats for any length of time, you know that a bored cat is a mischievous cat. That’s why it’s so...

How Rare Are Brown Cats? Vet-Verified Cat Genetics

When was the last time you spotted a brown cat? If you answered, “I can’t remember,” or, “Never!” you form part of the...

Keep reading

Can Cats Understand Humans and Our Language? What Science Says

As loving pet owners, we find it all too easy to anthropomorphize our pets. We often assign human emotions to their facial expressions and body language or talk to them as if they understand what we’re saying. Dogs have been...

little girl talking to cat

How Many Calories Should a Cat Eat? Vet-Reviewed Cat Feeding Guide

All cats have individual dietary needs based on their breed, size, age, and health conditions. As notoriously picky eaters, finding the right food for them is only half the battle. Feeding your cats the appropriate amount is a crucial aspect...

Blue hepper NomNom 4

Can Cats Eat Marshmallows? Vet Approved Nutritional Facts & Risks

If you’re enjoying a cup of hot chocolate with marshmallows on top, or are feasting on mallows directly from the bag, it can be tempting to offer one or a piece of one to your cat. But, it is important...

Can Cats Eat Marshmallow

Weruva Patés Cat Food Review (2025 Update)

Review Summary You may be familiar with Weruva, as it’s a brand that’s been around since 2006, but you might not be as familiar with all their food lines. One of their lines is the patés line, featuring patés high...

Weruva Classic Cat Paté Review

When Can I Let My Kitten Roam the House? Vet-Approved Info & 4 Safety Tips

Kittens are curious creatures that like to explore and get into mischief. Letting a kitten roam free in the house can be a dangerous proposition. They are tiny and unaware of lurking dangers. Their ability to hide in small spaces...

siamese kitten playing

Does Baby Powder Kill Fleas on Cats? Vet-Reviewed Facts & Safety Explored

Fleas are cats’ most common skin parasite. They not only cause skin problems but can also transmit diseases to you and your cat. Finding effective and safe ways of killing fleas is essential to avoid problems. Baby powder contains talcum...

Baby talcum powder container on wooden background

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 vet. But the truth is that dandelions are healthy for your cat in moderation. They offer numerous...

Can Cats Eat Dandelions

Can I Wash My Cat with Dr. Bronner’s? Vet-Verified Facts & Considerations

As all kitty owners know, cats and water typically don’t go together. However, what if your feline friend needs an emergency bath, and you don’t have any pet shampoo handy? In that case, using an unscented castile soap like Dr....

cat on top of bathtub