Why Do Cats Yawn? Normal Yawning vs. Too Much

Name: Why Do Cats Yawn? Normal Yawning vs. Too Much
Creator: Dr. Zubair Khalid

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-10-03

Is it normal for cats to yawn? Yes, in most cases. A yawn here and there is a normal behavior that helps a cat transition between states of alertness and rest, and it can also be a quiet social signal. The question that matters is not whether your cat yawns, but how often and in what situations.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

Occasional yawning is normal in healthy cats, especially when they wake up, settle down, or feel relaxed.
Yawning appears to help cool the brain and shift arousal levels, which is why it often shows up at transitions [1][2].
A sudden increase in yawning is the real red flag. It often points to stress, nausea, or mouth pain.
A cat that yawns and then smacks its lips, drools, or refuses food needs a veterinary exam.
Never punish a cat for yawning. It is not defiance, boredom, or bad manners.

Why Do Cats Yawn? The Normal Reasons

Waking Up and Settling Down

Most cat yawns happen at the edges of the day. Your cat wakes from a nap, stretches, and yawns. Later, as it curls up to sleep again, it yawns once more. This pattern fits what researchers believe yawning does: it helps move a brain from one arousal state to another. The wide mouth opening and deep breath increase blood flow and help cool the brain, which supports a change in alertness [2].

Brain Cooling

Yawning is not just a stretch of the jaw. It appears to be a thermoregulatory behavior, meaning it helps regulate brain temperature. A large study across 101 species found that animals with bigger brains and more neurons yawn for longer, which supports the idea that yawning serves a cooling function [1]. A cat's brain is small compared with a human's, so cat yawns are short. That is expected and normal.

Social and Emotional Signals

Yawning can carry social meaning. In horses, contagious yawning spreads between animals that share good relationships, which suggests yawning can support social cohesion [3]. Cats are not horses, but they are social animals with their own signals. A slow yawn directed at you during a calm moment may be part of relaxed communication. If you yawn back and your cat yawns again, that is not a medical problem. It is a quiet moment between you.

Stretching and Jaw Mobility

Cats often yawn while stretching after sleep. The yawn opens the jaw fully and moves the muscles around the mouth and throat. This is normal maintenance behavior. If your cat yawns fully, wide and smooth, with no hesitation, that is a good sign.

Is It Normal for Cats to Yawn a Lot? Medical Causes to Rule Out

A cat that yawns far more than usual, or yawns in new situations, may have an underlying problem. Here are the main medical causes.

Nausea and Gastrointestinal Upset

Nausea is one of the most common reasons for repeated yawning in cats. A nauseated cat may yawn, lick its lips, swallow, drool, and then vomit. You may see this pattern before a hairball or after eating something that did not agree with it. If the yawning comes with vomiting, weight loss, or a poor appetite, your cat needs a veterinary exam.

Dental Pain and Oral Disease

Mouth pain can trigger yawning. A cat with a sore tooth, gum disease, or a broken tooth may yawn because opening the jaw feels different, or because it is trying to relieve pressure. Watch for bad breath, drooling, dropping food, chewing on one side, or flinching when you touch the face. These signs point to the mouth, not to boredom.

Stress and Anxiety

Do cats yawn when stressed? Yes. A stressed cat may yawn repeatedly as a displacement behavior, meaning it performs a normal behavior out of context to cope with tension. You might see this at the vet clinic, during a car ride, after a move, or when a new pet enters the home. Yawning paired with flattened ears, a twitching tail, hiding, or dilated pupils suggests stress, not relaxation.

Respiratory and Neurologic Conditions

Yawning changes how a cat breathes for a moment. A cat with nasal congestion, asthma, or another breathing problem may yawn more often. If you notice sneezing, coughing, or noisy breathing along with the yawning, read Why Is My Cat Sneezing So Much And Coughing and Why Is My Cat Sneezing So Much And Has A Runny Nose. Breathing problems in cats can worsen quickly, so do not wait if your cat is working hard to breathe.

Pain Elsewhere in the Body

Pain anywhere can increase yawning. A cat with bladder pain, for example, may yawn along with frequent trips to the litter box. If your cat is also spending time in the litter box without producing urine, that is an emergency. See Why Is My Cat sleeping in litter box? FLUTD Pain and Anxiety Response for more on that pattern.

Cat Not Yawning Fully: What It Can Mean

A full yawn opens the mouth wide and looks smooth. If your cat starts yawning with a half-open mouth, or stops mid-yawn, pay attention. This can happen with jaw pain, dental disease, or a sore throat. It can also happen with nausea, when the yawn is really a gag reflex in disguise.

Some cats simply have a smaller yawn style. If your cat has always yawned this way and eats, plays, and grooms normally, there is likely nothing wrong. The change matters more than the style. A cat that used to yawn wide and now cannot is telling you something hurts.

When Yawning Becomes a Problem

Yawning is a problem when it is frequent, new, or paired with other signs. Use this as a simple guide.

Normal: a few yawns a day, mostly around sleep, with a relaxed body.
Worth watching: more yawning than usual for a day or two, with no other signs.
Call your vet: yawning plus drooling, lip smacking, bad breath, vomiting, or hiding.
Emergency: yawning plus open-mouth breathing, blue gums, collapse, or straining to urinate.

If your cat is breathing fast while resting or sleeping, that is a separate warning sign. Read Cat Breathing Fast While Sleeping: When to Worry to help you decide how urgent it is.

What to Do Step by Step

Step 1: Track the Pattern

Write down when the yawning happens. Note the time of day, what your cat was doing, and what else you saw. A phone video is very helpful. Your vet can learn a lot from 30 seconds of footage showing the yawn and the body language around it.

Step 2: Check the Mouth at Home

With clean hands and good light, gently lift your cat's lip. Look for red gums, tartar, broken teeth, or swelling. Do not force the mouth open. If your cat pulls away or cries, stop and let your vet examine it.

Step 3: Reduce Stress Triggers

If the yawning started after a change, address the change. Give your cat a quiet room, extra hiding spots, and separate food, water, and litter areas from other pets. Keep routines steady. Pheromone diffusers and calm, predictable handling can help some cats.

Step 4: Support Eating and Drinking

A cat that feels nauseated may eat better with small, frequent meals of bland food. Ask your vet before changing the diet, especially if your cat has a medical condition. Fresh water in a wide bowl helps cats that do not like their whiskers touching the sides.

Step 5: Book the Right Visit

Call your vet and describe the yawning, plus any other signs. Mention weight change, appetite, vomiting, drooling, and litter box habits. Your vet will decide whether to examine the mouth, run blood work, or check for nausea and pain.

What Not to Do

Do not punish your cat for yawning. Yawning is not rude, stubborn, or dramatic. Punishment adds stress and can make stress-related yawning worse.

Do not assume a yawn means your cat is tired. A tired cat yawns, but so does a nauseated cat and a cat in pain.

Do not give human medications for nausea or pain. Many common human drugs are toxic to cats. Your veterinarian calculates any dose from your cat's weight and health, and some drugs are never safe for cats at any dose.

Do not wait weeks to see if frequent yawning stops on its own. Dental pain and nausea do not resolve without treatment.

Do not rely on internet videos to diagnose your cat. A video can help your vet, but it cannot replace an exam.

When to Involve a Veterinarian or Behavior Professional

Call your veterinarian if the yawning is new, frequent, or paired with any change in eating, drinking, grooming, or litter box use. Call sooner if you see drooling, bad breath, vomiting, weight loss, or hiding.

Ask for a referral to a veterinary behaviorist if your cat's yawning is tied to anxiety, aggression, or house soiling and does not improve with home changes. A certified behavior professional can build a plan that fits your cat.

Limitations and When to Contact a Veterinarian

This article cannot tell you what is happening in your individual cat. Only a veterinarian who examines your cat can do that.

Contact your veterinarian the same day if your cat:

Yawns repeatedly and cannot settle
Drools, smacks its lips, or vomits
Refuses food or water for more than 24 hours
Has bad breath, a swollen face, or a visibly broken tooth
Yawns with a half-open mouth and seems painful

Go to an emergency clinic now if your cat:

Breathes with an open mouth or stretches its neck out to breathe
Has blue, pale, or white gums
Collapses or cannot stand
Strains to urinate with no urine produced
Has a swollen, painful belly

For routine concerns, book a visit within a few days. Bring your notes and any video. Your vet may recommend blood work, dental radiographs, or a nausea trial based on the exam.

Frequently Asked Questions

Do cats yawn when they are happy?

Sometimes, yes. A relaxed cat may yawn during a calm stretch or while settling next to you. Look at the whole body. Soft eyes, slow blinking, and loose posture suggest comfort. Tense ears, a whipping tail, or hiding suggest the opposite.

Why does my cat yawn when I yawn?

Contagious yawning has been documented between species, including humans responding to yawns from household pets [4]. Cats may also pick up on your behavior or simply mirror a calm moment. This is usually a social response, not a sign of illness.

Can yawning mean my cat is sick?

It can, especially if the yawning is new or frequent. Nausea, dental pain, stress, and breathing problems are common causes. A single yawn after a nap is not a reason to worry. A pattern change is.

My cat yawns and then vomits. What should I do?

Call your vet. Yawning before vomiting often points to nausea. Your vet will ask about diet, hairballs, weight, and how often this happens. Bring a video if you can, and do not give any human anti-nausea medicine.

Is a big yawn a sign of aggression in cats?

No. A wide yawn is not an aggressive display. Aggression in cats looks like hissing, swatting, flattened ears, and a puffed tail. A yawn during a tense moment is more likely a stress signal or a way to shift arousal, not a threat.

How many yawns a day are normal for a cat?

There is no fixed number. Most healthy cats yawn a handful of times a day, often around sleep. What matters is your cat's baseline. If your cat suddenly yawns many more times than usual, or yawns in new situations, have it checked.

References

Brain size and neuron numbers drive differences in yawn duration across mammals and birds. Communications biology, 2021.
Yawn duration predicts brain weight and cortical neuron number in mammals. Biology letters, 2016.
Yawning in sync: implications for social cohesion in horses. Current zoology, 2025.
The Role of Empathic Concern and Gender on Interspecific Contagious Yawning in Humans. Animals : an open access journal from MDPI, 2023.