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

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

How Do Cats Greet Each Other? Feline Communication Explained

We know how cats typically say hello to us, but how do they greet each other? Cats say hello to each other by...

two cats_Thomas B., Pixabay

Why Do Cats Open Their Mouth When They Smell? Reasons Explained (Vet Answer)

Have you ever noticed your cat pull a face as if they’ve just smelt the most disgusting thing ever? Eyes closed, mouth wide...

fluffy cat smelling while mouth is open

Can Cats Smell Diabetes? Vet-Verified Facts & FAQ

Diabetes is a disease in which an individual’s blood sugar levels become too high. There are two types of diabetes. Type 1 diabetes...

young man and brown tabby cat smell or looking each other

Is a Cat’s Sense of Smell Stronger Than a Dog’s?

Cats vs. dogs have been a subject of debate for as long as the two have been human companions. But there are some...

orange cat smelling something

More related

Tabby cat smelling a young man in front of the window

Cat Huffing: Why People Like Smelling Cats So Much

Cats have a unique odor that many people find appealing. In fact, some people enjoy the scent so much that they actively seek...

cat nose

10 Interesting Facts About Cat Noses & Their Sense of Smell (Vet Approved)

Although cats have all the senses humans do, they use theirs differently and in impressive ways. Their vision is excellent in low light...

British Short-hair Cat beside shoes

Why Do Cats Love Shoes? 3 Vet-Approved Reasons for This Behavior

If you’ve felt like you’ve observed your cats having a strange obsession with your shoes, it might not just be in your head....

cat sleeping with owner

Can a Cat Smell Human Hormones? Our Vet Explains the Science

A cat’s sense of smell is much better than ours. This can be attributed to the fact that cats are endowed with over...

Keep reading

Why Do Cats Walk in Circles Before Lying Down? Facts & FAQ

Cats are known for their weird yet fascinating behavior, which can sometimes leave owners shaking their heads. One of the most peculiar behaviors that many cat owners have observed is their tendency to walk in circles for a minute or...

russian blue lying down

What Do You Do if You Find a Stray Cat? 4 Vet-Reviewed Steps to Take

Stray cats are common in almost every part of the world. As such, it’s not rare for you to run into a stray cat. You might even have one staying near your house that you repeatedly notice. It could even...

cat sitting on the fence

Why Is My Cat Standing on His Hind Legs? Possible Reasons & When To Be Concerned (Vet-Verified)

It’s not uncommon for cat owners to catch their cats doing crazy things, like chasing their tails or staring wide-eyed into the distance. If you caught your cat standing on their hind legs, you may wonder what alternative universe you...

calico-cat-having-treats

10 Best Cat Foods for Constipation In 2025 – Reviews & Top Picks

Does your kitty need help, “moving things along”? Have you noticed they haven’t passed feces for a few days or have small dry poops? If so you may be wondering what are the best foods for constipation in cats. As...

side view of tabby cat eating pet food from feeding bowl on white background with copy space

How Do I Find a Lost Cat with a Microchip? Vet-Verified Facts & Safety Tips

Losing your cat is a situation no one wants to go through. You might have lived with the cat for years, and losing them can affect you emotionally. Since cats are territorial, their disappearance could mean that they are trapped,...

Beautiful well-groomed cat is lost_IRINA ORLOVA_Shutterstock

7 Vet-Reviewed Tips for an Attention-Seeking Cat in a Multi-Cat Household

It’s no secret that our cats have very different personalities. If you are the owner of more than one kitty, you know just how different their love languages and attention requirements can be. So, if you have a cat that...

cat rubbing its head against the owner's legs

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 recognized skin condition in cats, you need to know if your cat can suffer from it and...

Ringworm lesion in cat

Why Is My Cat Clingy When I’m On My Period? Vet-Verified Facts & Info

Stomach cramps, bloating, and feelings of nausea and irritability. These are all common symptoms associated with being on your period. But, one sign that some owners are all too acutely aware of, but other women may not recognize, is having...

woman-and-her-cat-resting-in-sofa