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

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.

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

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.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Egyptian Mau Cat Breed: Info, Pictures, Temperament & More

You’ll notice the Egyptian Mau right away because of their stunning silvery coats and gorgeous eyes. You might wonder just what this cat...

Will an Air Purifier Help With the Smell of Litter? Vet-Approved Facts, Guide & Info

Many people use air purifiers to help lessen allergy symptoms, filter out harmful chemicals or mold spores, and make the air in their...

Why Is My Cat in Heat So Much? Vet Approved Facts & FAQ

If this is your first time living with a queen, or a non-spayed cat, it might surprise you how often they go into...

9 Most Common Cat Medications for Feline Use (Vet Answer)

As veterinary medicine expands, so too does the number of treatment options available for use in feline patients. The selection is impressive—arthritis injections,...

More related

Why Is My Cat So Demanding? 6 Vet-Verified Ways to Deal with a Demanding Cat

One of the most endearing things about cats is their unique and diverse personalities. While some cats are quiet and unassuming, others are...

Fish Oil Benefits for Cats: Vet-Approved Tips & Health Effects

While shopping for cat food you may have noticed that many recipes include fish oil in their ingredient list, especially higher-quality recipes. You...

How to Determine a Kitten’s Age: Vet Approved Life Stages & Development Characteristics

If you’ve helped rescue a few kittens or found a stray litter that you want to support, it’s a good idea to find...

Rabies in Cats: Our Vet Explains the Causes, Signs & Treatment

Rabies is a severe, usually deadly disease caused by the rabies virus (Rabies Lyssavirus). It is present throughout the world and can affect...

Keep reading

10 Best Cat Treats (Healthy & Tasty) in 2026 – Reviews & Top Picks

It’s a truth universally acknowledged among cat owners that our kitties deserve all the treats. But what should we do when our cats are a little on the chubby side and we need to make sure they don’t overeat? The...

Bengal cat and the owners hand with a treat on the background of the room

My Cat Is Holding Their Paw Up When Sitting: Vet Reviewed Facts & FAQ

Our kitties are constantly warming our hearts with their hilarious antics. It seems they are always making a strange noise or learning new skills that make you shake your head. If you have noticed that your cat sometimes lifts their...

white cat wave his paws

Can Cats Eat Pretzels? Vet-Verified Nutrition Facts & Risks

Pretzels are baked snacks with a dusting of salt on top. They’re addictive to you, but can your cat enjoy them with you? No, your cat shouldn’t eat pretzels, as they’re not species-appropriate snacks. To find out more, we did...

Can Cats Eat Pretzels

Can Cats Eat Oregano? Vet-Verified Toxicity Facts & What to Do

Oregano is a popular and versatile culinary herb that’s often used in cooking all over the world, as well as for medicinal properties. Many common cooking herbs are fine for cats, but what about oregano? Can cats eat oregano? Is...

Can Cats Eat Oregano

My Cat Lost a Claw – Do Cat Claws Shed? Vet-Reviewed Facts & Advice

If you’ve found bits of your cat’s claws around the house, the good news is that this is a normal and healthy part of owning a cat. As cat claws grow out from the blood supply (also known as the...

cat paws and sharps claws

Why Does My Cat Yowl After Eating? 5 Vet-Verified Reasons for This Behavior

No matter how much we think we understand cats, they still have quirks and habits that can surprise even the most experienced owners. Primarily because every cat is unique, so even if you get used to the behavior of one...

ginger tabby cat looking up meowing

How Much Hissing Is Normal When Introducing Cats? What to Tolerate & Guide (Vet-Reviewed)

Welcoming a new kitty to the family is exciting for the humans in the household. The other resident cats? Maybe not so much. While some cats get along instantly, others need some time to warm up to one another. It’s...

Angry cat hisses to another cat

Should I Euthanize My Cat With Diabetes? Vet-Reviewed Facts & FAQ

Deciding whether or not to euthanize a beloved pet with diabetes is one of the most difficult decisions a pet owner can face. Diabetes is a serious condition that affects cats, and if left untreated, it can lead to significant...

cat with intravenous infusion drip in vet clinic