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.

My Cat Is Smacking Their Lips, What’s Wrong? Vet-Verified Reasons & Advice

a hungry cat smacking her lips on a bed

Like any other devoted pet owner, you’ve probably spent hours staring at your cat and studying their every move. Cats are unique and fascinating beings, and they exhibit some very strange behavior. You surely noticed your lovely feline smacking their lips occasionally.

Is it a weird ritual they have, or is it a reason for worry? Lip-smacking is usually an entirely harmless behavior that cats display after a delicious meal or during a cuddle. However, there are situations when lip-smacking can point to severe medical conditions.

Read more on this topic below to find out all the possible scenarios when a cat might smack their lips and whether you should be worried.

divider 1 paws

The 4 Possible Causes of Cats Smacking Their Lips

Every cat owner notices their cat’s small daily rituals; most of the time, the rituals are entirely normal. Lip-smacking is a normal behavior unless it becomes excessive. Below, you’ll find some common reasons a cat may smack their lips, most of which are usually harmless.

1. After a Meal

As you’ve probably noticed, dogs and cats adore showing you how delicious their meal was by grooming themselves afterward. This ritual includes smacking their lips and licking their gums to remove leftovers. Cats usually lick the fur around the lips, gums, and teeth as a regular grooming ritual after each meal, so a little lip-smacking is nothing to worry about.


2. During Petting

Cats habitually lick themselves and smack their lips when they are content. These habits are most likely to appear when petting or cuddling your cat, so if you see your cat licking their lips, don’t worry about it. This is the cat’s unique way of communicating their appreciation of all the attention received.

a woman's hand petting a cat
Photo Credit: Yerlin Matu, Unsplash

3. Dental Issues

Several unavoidable health complications in cats, such as dental diseases, occur when they’re older. While plaque and tartar are undesirable conditions, they are not entirely unexpected in older cats.

They can cause bacteria to develop, and you can expect your senior cat to do a lot of lip-smacking and licking if they have an oral issue causing excessive drooling.


4. Bad Taste

Since cats are natural predators, they may find insects and strange plants they’ll want to play with and nibble on, so it’s not uncommon for them to stumble upon a bad-tasting plant with a strong flavor. This unpleasant experience can cause the cat to produce more saliva and smack their lips.

This is typically harmless—as long as the plant they’re chewing on is non-toxic—and it’s the cat’s way of dealing with an unpleasant taste. Of course, it’s best to avoid letting your cat chew on any plants, no matter their toxicity.

black bombay cat outdoor licking mouth
Photo Credit: Henrik Veres, Pixabay

divider 1 paws

When Should You Worry?

While we’ve mentioned the most common causes of cats smacking their lips, there are some moments when lip-smacking can be a cause of worry. If your cat smacks their lips excessively and displays other strange behavior, you may need to see a veterinarian.

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

Stress

Stress has one of the most harmful effects on your pet’s body. When your cat is stressed, you may notice excessive vocalization, agitation, and aggressiveness. Sometimes, stress in cats can be very subtle, with only a few signs.

Excessive drooling, swallowing, and lip-smacking can result from a stressful situation. If you notice the behavior, try to remove the cause of the stress or remove your cat from the stressful situation.

Nausea

Feeling nauseous is a common reason for lip-smacking in cats because of the excess saliva their body produces. When you know your cat has stomach problems, you may notice them smacking their lips. While stomach problems are not normal, they are not always a cause of worry and can happen due to hairballs or changes in diet. However, if there is repeated lip-smacking, it’s time to speak with a vet.

divider 1 paws

Conclusion

Cats smacking their lips is usually a normal reaction to something they’ve eaten or a simple expression of satisfaction. The cause for the behavior can be as simple as a delicious meal or as complex as an underlying medical condition. Acquiring all the necessary information is vital to rule out the potential risks and confirm that your cat is simply grooming itself.

If you are still unsure and worried, you can always take your cat for a checkup at the vet.

See Also: 


Featured Image Credit: Karina Chilanti, 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

What Kind of Cat Is the I Can Has Cheezburger Cat? Meme Felines

The “I Can Has Cheezburger” cat meme was circulated in 2007 first and became extremely popular. The cat was a British Shorthair Cat,...

Why Do Cats Like to Sit on Paper? Our Vet Explores 4 Likely Reasons

Whether it is the daily newspaper print or that pile of documents on your desk, it seems like your kitty does not leave...

White Maine Coon Cat Breed Info: Pictures, Temperament & Traits

The Maine Coon may have arrived by Viking ships to Maine, United States, sometime in the 1900s, where they quickly became popular pets....

Lightweight Cat Litter vs Regular: Our 2025 Comparison

The days when you had very little choice in the type of cat litter you purchased for your feline pal are long gone....

More related

Can Cats Eat Animal Crackers? Vet Reviewed Facts

Picture the scene: You’ve stolen a few minutes to enjoy some animal crackers, and your cat comes over, settles at your feet, and...

Frisco Cat Tree & Condo Review (2025 Update)

Review Summary The Frisco Cat Tree & Condo is the cat house that your furry feline friend has always dreamed of. Between its...

Exploring the Cats of the Rich & Famous: 20 Celebrity Kitties

For cat owners, feline fur babies mean the world. Cat owners love to snuggle up with their cats and doze off listening to...

8 Best Cat Foods for Kidney Disease in Canada of 2025: Reviews & Top Picks

Learning that your cat has a chronic condition, such as chronic kidney disease (CKD), can feel scary. Though this condition is not curable...

Keep reading

Why Is My Cat’s Stomach Gurgling? 8 Vet-Reviewed Reasons

If your cat’s stomach is making odd noises, you may be wondering what’s going on and what causes it. Cat stomach gurgles are often totally normal — they’re often just the sounds caused by everyday feline digestive processes, but these...

A man hand strokes a cat on a sore stomach

How to Tell If a Cat Is Neutered: 6 Vet-Reviewed Signs to Look For

The best and often easiest way to check if a cat is neutered is to bring him to the veterinarian. If that isn’t an option for you, there are a few signs you can look for. Before you begin, you...

neutering cat on a vet's operating table

Why Is My Cat So Naughty? Vet-Approved Feline Misbehavior Explanation

Cats may engage in tons of behaviors that seem “naughty” to us without actually being naughty. Often, this may be the result of a cat’s unique personality, but it can also just be a normal cat behavior. For instance, many...

A cat sitting in a pile of tissues.

How to Teach Your Cat to High Five: The Step-By-Step Guide

Looking to teach your cat how to high-five? Wondering exactly how to do it or if your cat is even able to perform such a cool trick? Well, you’ve come to the right place. The truth is that like dogs,...

bengal cat gives a high-five paw to the owner

How Often Should I Feed My Cat? Vet-Reviewed Considerations & Tips

Next to feeding your cat just the right amount, you should also concern yourself with how often to feed your feline. There isn’t actually a one-size-fits-all answer for this. In many cases, it will depend on your schedule and your...

tabby cat eating cat food out of bowl inside

How to Tell if Cat Mating Was Successful: 9 Signs to Look For

If you have an unspayed female cat, she can become pregnant very easily. Your cat’s estrus cycle shares some similarities to a human’s menstrual cycle. Your unspayed female can go into heat by 6 months of age or even earlier,...

Pregnant White Cat

Why Do Cats Like Damp Towels? 3 Possible Reasons

Cats can be finicky and tend to dislike many things that we’d like them to interact with, like new toys and beds. Many cats would rather play with or sleep in a cardboard box! So, it might not come as...

Groomer holding down a cat with a towel

Why Is My Cat Making a Vibrating Noise? Vet-Approved Explanation

Perhaps you’re sitting on the couch with your cat that has wandered over to you for some affection. You oblige and scratch behind your pet’s ears as they lean into your hand. As you stroke your kitty’s back, you feel...

person petting a cat