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

Why Is My Cat Breathing Fast? 5 Reasons Behind This (Vet Answer)

A cat that seems to be breathing faster than usual is always alarming and should be checked by your vet straight away. After...

Is It True That All Cats Hiss? Vet-Verified Facts & FAQ

When coming in contact with a strange cat you’ve never met, your first reaction may be to pet them. Reaching your hand out...

Can a Munchkin Cat Jump? Vet-Approved Facts

Munchkin cats may have shorter legs than the average cat, but that doesn’t usually put them at a physical disadvantage. Munchkin cats can...

Can Cats Sense Tsunamis Before Humans? Exploring Feline Instincts & Facts

Cats have long been surrounded by mystery, revered by the ancient Egyptians, featured as magical companions in folklore, and admired for their keen...

More related

Do Cats Eat Their Own Poop? Vet-Verified Facts & How to Stop It

Cats are curious creatures, and we may see them sampling various non-edible things, including houseplants, cardboard boxes, and our toes. Many animals eat...

My Cat Is Aggressive Toward Guests: 5 Reasons Why and How to Stop It (Vet-Reviewed)

Cats are often reluctant to interact with visitors. Some hang back and monitor their environments until they become comfortable enough to join the...

Do Male Cats Go into Heat? Vet-Reviewed Signs & Facts

Being a cat owner has its ups and downs, however, some moments may become complicated and cause you some stress. If you notice,...

Why Is My Cat’s Nose Raw? Vet-Reviewed Causes & Treatment

A cat’s nose is extremely sensitive. It is one of the only parts of the body that is not covered in protective hair....

Keep reading

Hill’s Science Diet Cat Food Review in 2026: Recalls, Pros & Cons

Review Summary Today, Hill’s Pet Nutrition is an international pet food brand that’s known for selling scientifically developed foods that are intended to help our pets live their best lives. But that’s not how Hill’s was started. When the company...

Hill's Science Cat Food Review

Can Cats Eat Craisins? Vet-Approved Nutritional Benefits & Precautions

Our pets are our best friends, and we only want them to eat the best. However, sometimes you wonder if your cat might like some of the snacks you’re munching on. For instance, can cats eat craisins? Many foods are...

Can Cats Eat Craisins

Why Is My Cat Obsessed With the Toilet? 6 Possible Reasons

Seasoned cat owners know our feline friends are prone to unique behaviors and quirky habits. One of the most puzzling cat fascinations you might observe may also leave you feeling slightly disgusted. Some cats just seem to love the porcelain...

black and white cat sitting on the toilet bowl

Can Cats Eat Fish Bones? Vet-Reviewed Feeding Facts

Cats are obligate carnivores. In the wild, they eat a good variety of small prey, depending on availability, and they make the most of their catch by eating all of their quarry. Prey are usually small mammals and birds, and...

Can Cats Eat Fish Bones

Can Cats Eat Cooked Fish? Vet-Reviewed Facts & FAQ

It happens to every cat owner sooner or later. Moments after sitting down to a nice seafood dinner, they begin to feel the watchful gaze of their kitty on them, imploring them to drop something. That’s when they ask themselves...

Can Cats Eat Cooked Fish

Is It True That Cat Allergies Are Genetic? Vet-Approved Prevention Tips & FAQ

If you are allergic to cats, the symptoms can be difficult to manage if you have cats. You may even wonder how your condition might impact your future children. Are they doomed to a life of dealing with cat allergies...

cat owner sneezing holding siamese cat

Can Cats Eat Parmesan? Vet-Approved Nutritional Facts & FAQ

As a cat owner, you know how tough it can be to say “no” to your kitty begging for a taste of food off your plate at the dinner table. Some human foods are okay to offer your kitty in...

Can Cats Eat Parmesan

How to Tell If Your Cat Needs to Pee: 5 Vet-Reviewed Signs to Look For

Have you ever wondered if your cat needs to go to the bathroom? For example, you might be thinking of taking your kitty on a long-distance trip in the car and want to know when your feline friend would need...

cat-peeing-on-the-bed