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 Does My Cat Keep Licking Their Lips? 5 Vet Reviewed Reasons

Share

grey cat just finished eating

Cat’s licking their lips can be a very common behavior, but now every time you look over they seem to be doing it. Maybe you wrote this as normal, but they just won’t seem to stop. So, if they didn’t just eat a tasty treat, what could cause this behavior? Is it a sign of concern? The good news is: not usually.

But several factors might cause it, so you need to know what you’re looking for. Let’s discuss some reasons your cat keeps licking it’s lips. Plus, find out what you can do to help if the situation calls for it.

divider 2 cats

The 5 Reasons Why Your Cat Keeps Licking Their Lips

1. Your Cat Is Grooming or Cleaning Up

Anyone who owns a feline knows just how clean they want to be. It might surprise you that cats spend over 5 hours a day grooming their bodies. They prefer their fur to be clean, debris-free, and sleek. Some cats may exhibit more or less of this behavior.

If you notice that your cat is licking their lips excessively after eating, it could be that they are just trying to clean the outside of their mouth. Some cats might be more obsessive about cleaning than others, but you need to look for other signs to point you in the right direction.

Start to pay attention to when your cat is licking their lips. If you find that it is directly after mealtime or once they’ve had a drink, you might be able to conclude on your own that this is, in fact, the reason.


2. Your Cat Might Suffer From Oral Disease

If you have a cat, particularly one that is advancing in years, oral disease is one of the most common things that can happen. There are several specific dental conditions that your cat might have.

Some of these issues include the following:
  • Gingivitis – Gingivitis is a bacterial condition in the mouth that causes swelling and redness on the gum line.
  • Periodontitis – Periodontitis is the advancement of gingivitis into a more serious tooth condition. The bacteria gets deeper into the gum line, which can cause infection and an abscess.
  • Tooth Resorption – Tooth resorption happens inside of the tooth and works its way out. Thirty to 70% of house cats suffer from this condition, and there is no known cause.
  • Oral Tumors – Oral tumors can develop anywhere on the inside of the mouth and can cause significant discomfort. Your cat licking it’s lips might be because of pain in their mouth. They aren’t able to comfort the feeling, so licking might help compensate or at least attempt to curb the pain.

Your veterinarian can examine your cat’s mouth to determine if they have any dental or oral issues. Once they check things out, they can recommend how to move forward. It could be something as simple as starting a brushing routine or as complicated as dental surgery.

To get ahead of any of these developing issues, it is crucial to brush their teeth and keep them clean no matter how much your kitty resists. Sometimes wet food can contribute to plaque buildup on the teeth, which can decay over time.

Developing a routine with your cat where you brush their teeth might take some getting used to, but eventually, they will acclimate. Also, offering dry kibble is a great way to clean the plaque off of their teeth; the crunch helps to reduce the buildup of plaque on their enamel and gumline.

Veterinarian checks teeth to a big maine coon cat at vet clinic
Image Credit: Ermolaev Alexander, Shutterstock

3. Your Cat Ate Something Toxic

It’s no secret that our cats eat things that they are not supposed to sometimes. You might look over to see one of them nibbling on inedible items or your favorite house plant. Certain things can be very toxic to our felines that we might not realize.

Others can be mildly toxic, not enough to cause significant signs but enough to irritate. If your cat eats something that is not agreeing with them, they might lick their lips or salivate. If your cat presents any of these other signs that accompany lip licking, bring your cat to the veterinary clinic immediately.

Other signs to look out for:
  • Salivation
  • Vomiting
  • Breathing issues
  • Diarrhea
  • Coma
  • Lack of appetite
  • Not drinking

Because toxicity to certain things can be quite dangerous, you need to make sure you get ahead of the issue. If suddenly your cat starts licking their lips excessively along with displaying other signs, you must take them to their veterinarian right away. You never know just how toxic something is and how life-threatening it could be.


4. Your Cat Is Nauseous

If your cat has an upset stomach, it might cause this behavior. Often, when a cat isn’t feeling the greatest, they might lick their lips as a sign of pain and irritation. If this is often happening due to nausea, there is most likely an underlying cause. Cats are not supposed to be nauseous all the time. It could be caused by anything from a scent that you use in your household to some food sensitivity.

In addition to lip-licking, you might notice the other signs that can point to nausea:
  • Drooling
  • Licking
  • Chewing
  • Dry heaving
  • Dehydration

While sometimes nausea can be a simple fix, it can point to more severe health issues.

Some additional causes for cat nausea include:
  • Kidney failure
  • Diabetes
  • Cancer

But if you do suspect that the nausea is ongoing, make an appointment with your veterinarian so they can examine your pet. They might have to run lab work testing to pinpoint exactly what’s off. In the event that it’s food-related, they might have you try food trials so they can pinpoint the ingredient that is giving the cat grief.

cat licking it's nose
Image By: Manfred Richter, Pixabay

5. Your Cat Might Have Allergies

If your cat is irritated with allergies, they might be licking their lips because they’re itchy. Allergies can be quite irritating, as anyone who suffers from them can contest to. Allergies might stem from environmental factors or food-related triggers. Other signs accompany allergies that could be apparent clues.

Look for different allergic reaction cues, such as:
  • Watery eyes
  • Excessive itching
  • Labored breathing
  • Wheezing
  • Skin irritation

If you are concerned about the possibility of allergies, work alongside your veterinarian to determine the cause.

divider 2 cats

There Might Be Other Explanations, but Ask a Vet

Unfortunately, it is hard to pinpoint the exact cause of lip-licking without a proper examination. To rule out anything severe or significant, you should always make sure to take your pet to see its own special doctor. You can work to get ahead of any conditions that might be developing.

There is no advice that is a substitute for a professional diagnosis. Mentally note any additional signs and work with your vet directly if necessary.

See Also: 


Featured Image Credit: mik ulyannikov, 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.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Chatting With Dr. Matt McGlasson About Special Needs Kitties, Social Media Fame, and Rating Cat Toe Beans | Chatty Cattys, Episode 32

In this episode of Catster’s Chatty Cattys podcast, Dr. Karyn and Nicole sit down with a very special guest: veterinarian and social media...

Does Your Cat Need A Friend? How to Tell If Your Cat Is Lonely

Cats have a reputation for being perfectly happy on their own – independent, self-sufficient, and solitary. But, like many stereotypes, this one does...

Proof That Moving Cats Indoors Is Easier Than You Think

We know that indoor cats live longer and have significantly lower rates of illness and injury than those that spend part or all...

Why Cats Love To Get High

If you’re trying to find a cat in any home, the search almost always ends by looking up. They’ll be on top of...

More related

Can Cats Eat Arugula? Vet-Verified Nutrition Facts & FAQ

Arugula is a bitter and slightly spicy plant that we often put in salads. With its increasing popularity in health food recipes, it...

Can Cats Get Kidney Transplants? Our Vet Discusses Facts & Considerations

Kidney disease is one of the most common causes of illness and death in cats, with almost 80% of cats over 15 years...

Sudden Blindness in Cats: 4 Vet Approved Possible Causes and What to Do

Cats are known for having great peripheral and night vision. They spot things like mice and flies much easier than we humans can....

How to Care for a Cat With Diabetes: Our Vet Shares 7 Tips

Diabetes in cats is fairly common. Many people become concerned when they receive the diagnosis, knowing that their cat now has this lifelong...

Keep reading

How to Care for a Tortoiseshell Cat: 9 Vet-Approved Tips

You’ve decided to adopt a Tortoiseshell cat and give them a forever home. Now, you’re wondering how to care for your new little friend. There are quite a few breeds that have Tortoiseshell coats, including Ragdolls and Persians. In this...

fluffy cat domestic longhair tortoiseshell cat

Why Do Cats Sit on Their Toys? 6 Possible Vet-Reviewed Reasons for This Behavior

Cats are strange creatures with adorable, quirky habits that make them endlessly fascinating to watch as they go about their enigmatic feline business around our home. Cat owners have probably seen their cat sitting on their toys for no apparent...

devon rex cat sitting on the bed

How to Pick Up a Cat the Right Way: Vet-Approved Tips & Tricks

Not all cats enjoy being picked up; however, there are times when it is necessary. If you need to pick up your cat for any reason, it is important that you do so properly. Picking up your cat correctly can...

person holding a gray cat with collar

Are Tomato Plants Toxic to Cats? Vet-Reviewed Houseplants Examined

There’s nothing more exciting than welcoming a new cat into your life. Having a pet involves taking good care of it and buying the proper cat food, plenty of kitty litter, and some toys. If you plan on allowing your...

Catster_Are Tomato Plants Toxic to Cats

Do Cats Poop Out of Spite? Vet-Verified Reasons & Feline Behavior Explained

If you’ve lived with cats for a while, you may have wondered if they do things out of spite when they’re upset. It can sometimes seem like they’re making a statement, especially when their behavior rapidly changes. If your cat...

cat pooping

Canidae Cat Food Review of 2026: Recalls, Pros & Cons

Review Summary Canidae truly started as a labor of love. The company’s two founders, Scott Whipple and John Gordon, met in a pet food store owned by Whipple. The two men bonded over their love of animals and their dissatisfaction...

Canidae Cat Food Review

8 Best Kitten Foods for Sensitive Stomachs in 2026 – Reviews & Top Picks

Some cats have sensitive stomachs. Whether due to genetics or their gut microbiome, some kittens can’t handle the same foods that other cats can. The stomach upset that follows can be frustrating for you, but it can be quite painful...

American cat kittens eating

Why Does My Cat Grab & Bite My Arm? 6 Vet-Reviewed Reasons & What to Do

Cats are often unfairly stereotyped as moody and unpredictable animals. While many dedicated cat lovers would argue otherwise, our feline friends sometimes display behavior that’s hard to understand. For example, some cats seem like they enjoy petting but will quickly...

cat biting owner

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.