15 Signs Your Dog May Be Anxious

15 Signs Your Dog May Be Anxious

Written by: Dr. Kathryn Dench

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Time to read 14 min

An anxious dog does not always look frightened. Some dogs tremble or hide when they are worried, but others pace around the house, bark at every noise, lick their paws, destroy the sofa or suddenly become unusually clingy.

That variety is one reason anxiety in dogs can be surprisingly easy to miss.

As a veterinarian, one of the most useful questions I ask is not simply, “Does your dog seem anxious?” but “What does your dog do when they are uncomfortable?” Owners often recognize the individual behaviors immediately, even if they have never connected them with anxiety.

Fear and anxiety-related behaviors are also extremely common. A large US study published in 2024 found moderate-to-severe fear and anxiety behaviors in almost half of the dogs surveyed.

Recognizing anxiety early matters. Repeated anxiety can affect a dog's welfare, relationships and ability to cope with everyday situations. The earlier we understand what a dog is communicating, the sooner we can start helping.

Key Takeaways

  • Anxiety in dogs can appear as subtle body-language changes as well as obvious fear.

  • Panting, pacing, trembling, lip licking and yawning can all be signs of stress when they occur outside their usual context.

  • Some anxious dogs become clingy, while others hide or try to escape.

  • Barking, destructive behavior and toileting indoors may have anxiety behind them rather than being deliberate “bad behavior.”

  • Fear can sometimes trigger growling, snapping or other defensive aggression.

  • A sudden behavioral change should always prompt consideration of pain or illness as well as anxiety.

  • Look for patterns and clusters of signs, rather than trying to diagnose anxiety from one behavior alone.

Anxiety look like in dogs

What Does Anxiety Look Like in Dogs?

Anxiety is essentially anticipation of something unpleasant or threatening. Unlike an immediate fear response, where the danger is right in front of the dog, anxiety can occur before anything has actually happened.

A dog who is frightened by a thunderclap is experiencing fear. A dog who starts pacing when the sky darkens because they have learned that thunderstorms may follow is showing anxiety.

Dogs may become anxious about being left alone, unfamiliar people or dogs, noises, travel, veterinary visits, changes in routine or countless other situations. Some dogs also seem generally more anxious across many different situations.

There is no single “anxious dog posture.” Researchers assessing canine stress use combinations of behavioral and physiological indicators because individual signs can have several possible explanations. Behaviors associated with stress include panting, lip licking, restlessness, yawning, vocalization, salivation and escape attempts.

That context is crucial.

A dog yawning after waking from a nap probably needs more sleep, not therapy. A dog repeatedly yawning, panting and turning their head away while someone approaches with nail clippers is telling us something rather different.

Here are 15 signs worth watching for.

1. Panting When Your Dog Isn't Hot

Panting is completely normal after exercise or on a hot day. Dogs rely heavily on panting to regulate their body temperature.

But unexplained panting can also accompany anxiety.

You may notice your dog suddenly panting during a car journey, thunderstorm, veterinary visit or when unfamiliar guests arrive. The mouth may be pulled back more tightly than during relaxed panting, and you may see other signs such as pacing or difficulty settling.

Panting has repeatedly been recorded among behaviors associated with stress and anxiety in canine studies.

However, never automatically assume panting is behavioral. Pain, respiratory problems, overheating and several medical conditions can also cause excessive panting, so new or persistent panting deserves veterinary attention.

2. Pacing and Restlessness

An anxious dog often struggles to switch off.

They may walk repeatedly from room to room, circle, continually change sleeping positions or lie down only to get straight back up again.

This often becomes particularly noticeable when something stressful is approaching. For example, a noise-sensitive dog may start wandering around before a storm has properly arrived.

Restlessness and pacing are commonly recognized manifestations of canine fear and anxiety.

Think of pacing as the behavioral equivalent of being unable to sit still before an important interview. The body may be safe, but the brain has decided that remaining alert is more important than relaxing.

3. Trembling or Shaking

Shaking is one of the anxiety signs owners tend to recognize most readily.

Dogs may tremble during fireworks, thunderstorms, travel or veterinary examinations. Some shake so subtly that you will only notice the muscles around the hindquarters or shoulders quivering.

But shaking has plenty of non-behavioral causes too. Dogs may tremble because they are cold, painful, weak, nauseous or affected by neurological or metabolic disease.

If trembling appears suddenly without an obvious emotional trigger, particularly if your dog seems unwell in other ways, contact your veterinarian.

4. Excessive Lip Licking

This is one of those tiny signals that becomes fascinating once you start noticing it.

A dog may flick their tongue rapidly over their nose or lips even though there is no food nearby.

Lip licking can occur with nausea and after eating, but it is also widely recognized as a potential stress-related behavior. Research examining stress in dogs has identified lip licking among the behavioral measures associated with stressful experiences.

Watch what happens immediately before it.

If your dog repeatedly licks their lips when a child hugs them, another dog approaches or someone reaches toward their collar, they may be communicating discomfort long before they growl or attempt to move away.

5. Frequent Yawning

Dogs obviously yawn when they are tired. They can also yawn when emotionally uncomfortable.

Stress-related yawning becomes more meaningful when it appears repeatedly during a potentially challenging situation, particularly alongside lip licking, turning away, lowered posture or panting.

A 2024 review discussing chronic pain and behavior also highlights yawning, lip licking, hypervigilance and brief freezing among subtle signs of stress that can appear in affected dogs.

So, again, one yawn tells you very little. Five yawns during a three-minute veterinary examination tell you considerably more.

6. Becoming Very Clingy

Some anxious dogs want to be extremely close to their trusted person.

They may follow you from room to room, press against your legs, repeatedly ask for contact or suddenly seem incapable of settling unless touching you.

This is especially common around predictable triggers. A dog frightened by fireworks might spend most evenings independently snoozing across the room, then climb almost into your lap once the explosions begin.

Clinginess alone does not diagnose anxiety, and some dogs simply enjoy close contact. The important clue is a change from your dog's normal behavior, particularly when it consistently coincides with something stressful.

7. Hiding or Withdrawing

Other dogs take precisely the opposite approach.

Instead of seeking reassurance, they disappear.

An anxious dog may retreat behind furniture, under a bed, into a closet or into another quiet part of the house. Some dogs simply increase their physical distance from whatever is worrying them.

Avoidance and attempts to distance themselves are recognized components of anxious canine behavior. A 2026 canine behavior assessment, for example, included distancing, escape attempts and reduced responsiveness among avoidance behaviors associated with anxiety.

If your dog chooses to retreat somewhere safe, allow them that option whenever possible. Dragging a frightened dog back toward the thing they are avoiding can intensify distress rather than teach them that everything is fine.

8. Being Constantly on Alert

Some dogs appear unable to stop monitoring their surroundings.

Their head shoots up at tiny noises. Their ears constantly move toward sounds. They stare at doors and windows, repeatedly patrol the house or react to events that another dog might barely notice.

This heightened state of alertness is sometimes called hypervigilance.

It can be exhausting. A dog whose brain is continually scanning for potential threats has fewer opportunities to genuinely relax and sleep deeply.

Persistent hypervigilance can occur with anxiety, but veterinarians also need to consider pain and some neurological or sensory changes when behavior suddenly alters. Pain-related behavioral research highlights hypervigilance as one of several subtle behavioral changes that owners may observe.

9. Barking, Whining or Howling

Vocalization is another common outlet for anxiety.

A dog might bark repeatedly at unfamiliar noises, whine during car journeys or howl when left alone.

This is particularly relevant to separation-related distress. Research into canine anxiety routinely includes barking, whining and howling among behaviors associated with dogs struggling when separated from their owners.

Video can be incredibly helpful here.

Owners sometimes believe their dog settles shortly after they leave because the house is quiet when they return. Recording the first 30 to 60 minutes alone can reveal whether the dog actually sleeps or spends much of that time pacing, vocalizing or watching the door.

10. Destructive Behavior

A shredded cushion is annoying. A chewed doorframe can be expensive. Neither automatically means your dog was being naughty.

Destruction can occur through boredom, normal puppy behavior or inadequate opportunities to chew and explore. However, destruction can also be associated with considerable distress, particularly if it happens during absences or around doors and windows.

Scratching doors, damaging household objects and attempts to escape are among behaviors reported in dogs experiencing anxiety.

The pattern provides important clues. Destruction that occurs almost exclusively when the dog is alone deserves a very different investigation from a six-month-old puppy happily dismantling cardboard while the family watches television.

11. Urinating or Defecating Indoors

A previously housetrained dog who begins toileting indoors needs investigation.

Anxiety is one possibility, particularly if accidents happen during frightening events or when the dog is left alone. Inappropriate urination and defecation are among behaviors assessed when researchers investigate canine anxiety.

However, urinary tract disease, gastrointestinal disease, increased urine production, cognitive decline and other medical conditions can produce exactly the same outcome.

So please do not punish an adult dog for suddenly having accidents.

That risks increasing anxiety while completely missing an underlying medical problem.

12. Excessive Licking, Chewing or Self-Grooming

Some anxious dogs redirect their distress toward repetitive behaviors.

They may lick their paws, legs or flanks, chew themselves or repeatedly groom one particular area.

These behaviors can become self-reinforcing over time, but anxiety should never be the first explanation assumed for an itchy dog. Allergies, parasites, skin infections and pain are all extremely common reasons dogs lick themselves excessively.

This is a good example of why behavioral medicine and physical medicine cannot be separated neatly. The dog does not arrive carrying a little sign saying, “This one's psychological.”

We need to rule out physical causes while considering the emotional picture as well.

13. Changes in Appetite

Stress can change how dogs interact with food.

Some anxious dogs lose interest in meals or treats that they would normally devour. Others may still eat at home but refuse even high-value treats once they enter a frightening environment.

That can actually be useful information during training.

If a dog normally adores chicken but will not touch it when another dog approaches, I would treat that as a clue that the situation may already be too difficult for effective learning.

Persistent appetite changes should still be assessed medically. Pain, nausea, gastrointestinal disease, dental problems and many other conditions can reduce appetite.

14. Trying to Escape

When avoidance fails, some frightened dogs escalate to escape.

They may scratch doors, climb barriers, pull desperately away on the leash or attempt to bolt from veterinary clinics, grooming salons, vehicles or unfamiliar environments.

Escape attempts are well documented among behaviors occurring during stressful experiences in dogs.

This is particularly important from a safety perspective because a severely frightened dog may injure themselves while trying to get away.

If your dog repeatedly tries to escape a particular situation, the priority is not forcing them to “get used to it.” Instead, identify the trigger and work out how to reduce the intensity of the experience while gradually building a more positive response.

15. Growling, Snapping or Aggression

One of the most important things I wish more dog owners understood is that aggression and anxiety are not opposites.

Fear can cause aggression.

A frightened dog typically has several possible strategies: move away, freeze, seek safety or persuade the threat to move away instead. Growling, lunging and snapping can accomplish that last goal very effectively.

That does not make aggression harmless, but understanding the motivation changes how we manage it.

Punishing a fearful dog's warning signals can be particularly counterproductive. You may suppress the growl without changing how frightened the dog feels.

Veterinary research and clinical guidance increasingly recognize the connection between fearful experiences, handling and defensive behavior. Studies of veterinary handling, for example, have found greater fear responses with more intensive restraint.

A dog showing aggression should be assessed professionally, particularly if the behavior is new, escalating or creates a risk of injury.

Anxiety signs in dogs

Look for Clusters of Anxiety Signs, Not Just One Behavior

No item on this list proves that your dog has anxiety.

Panting can mean heat. Yawning can mean tiredness. Lip licking can mean dinner has just arrived. Barking can mean someone is knocking on the door.

What matters is context, frequency, intensity and combinations of behaviors.

Imagine a dog in the veterinary waiting room who yawns once. That tells me very little.

Now imagine the same dog repeatedly yawning and licking their lips while panting, refusing treats, scanning the room and attempting to hide beneath their owner.

The picture is much clearer.

Research into canine stress similarly relies on combinations of behavioral and physiological indicators rather than treating one isolated action as a definitive marker.

Learning your own dog's baseline behavior is therefore incredibly valuable. You are not trying to memorize a universal canine dictionary. You are learning how your dog communicates when their emotional temperature begins to rise.

Could Anxiety Actually Be Pain or Illness?

Sometimes.

This is particularly important when behavioral changes appear suddenly.

Pain can make dogs more restless, reactive, withdrawn, sensitive to handling or reluctant to participate in activities they previously enjoyed. Chronic pain has also been associated with changes in sleep, appetite and activity, alongside behaviors that can resemble fear or anxiety.

Older dogs may develop additional behavioral changes associated with declining vision or hearing, neurological disease or canine cognitive dysfunction.

That is why I recommend a veterinary examination for significant new anxiety, particularly in an adult or senior dog with no previous history of fearful behavior.

Treating anxiety while missing an arthritic hip is unlikely to get anybody very far.

When Should You Get Help for an Anxious Dog?

You do not need to wait until anxiety becomes severe before asking for help.

Speak with your veterinarian if your dog's anxiety is frequent, worsening or interfering with normal activities such as eating, sleeping, walking or being left alone.

Professional help is especially important if your dog is injuring themselves, attempting to escape, displaying aggression or experiencing intense panic.

Your veterinarian can first investigate medical contributors and then help determine whether environmental changes, behavior modification, referral to a veterinary behavior specialist or medication may be appropriate.

Anxiety disorders are genuine welfare concerns rather than quirks dogs simply need to tolerate. Reviews of canine stress research associate chronic stress with behavioral changes and poorer ability to cope with challenges.

Frequently Asked Questions

How can I tell if my dog has anxiety?

Look for repeated changes in body language or behavior that occur in particular situations, such as panting, pacing, trembling, hiding, clinginess, vocalization or attempts to escape. A cluster of signs that reliably appears around the same trigger is much more informative than one isolated behavior.

What are the first signs of anxiety in dogs?

Early signs can be surprisingly subtle and may include lip licking, yawning, turning away, becoming unusually alert, refusing food or repeatedly changing position. Recognizing these quieter signals can allow you to intervene before your dog progresses to barking, fleeing or defensive aggression.

Why has my dog suddenly become anxious?

Sudden anxiety can follow a frightening experience or environmental change, but pain and illness should also be considered. If your dog's personality or behavior has changed unexpectedly, particularly in middle or older age, arrange a veterinary examination.

Can dogs have anxiety when left alone?

Yes. Dogs experiencing separation-related distress may pace, vocalize, destroy objects, toilet indoors, salivate excessively or attempt to escape after their owner leaves, although individual presentations vary considerably.

Can an anxious dog still wag their tail?

Absolutely. A wagging tail does not automatically mean a dog is relaxed or happy, so it should always be interpreted alongside posture, facial expression, movement and the surrounding situation.


Does licking mean my dog is anxious?

It can, but licking has many possible explanations. Brief lip licking may accompany stress, while persistent licking of the paws or skin warrants investigation for allergies, parasites, pain and dermatological disease as well as behavioral causes.

Can anxiety make dogs aggressive?

Yes, fear and anxiety can contribute to growling, snapping, lunging or biting when a dog feels unable to escape a threatening situation. Because aggression presents a safety risk and may have medical as well as behavioral contributors, professional assessment is recommended.

Will dog anxiety go away on its own?

Mild, temporary anxiety associated with a specific unfamiliar experience may improve, but persistent or worsening anxiety should not simply be ignored. Identifying triggers and intervening early generally gives you far more options than waiting until the behavior has become deeply established.

Conclusion: Learn What Anxiety Looks Like in Your Dog

There is no universal portrait of an anxious dog.

One dog trembles. Another barks. Another follows their owner everywhere. Another becomes strangely quiet and hides beneath the table.

The most valuable skill is learning to recognize changes from your dog's normal behavior and looking at what was happening immediately before those changes appeared.

Pay particular attention to combinations such as panting, pacing, lip licking, yawning, trembling, hypervigilance, hiding or attempting to escape. Those clusters can reveal distress that is easy to overlook when each behavior is considered separately.

And if those signs appear suddenly, become intense or start affecting your dog's quality of life, speak to your veterinarian. Anxiety is treatable, but pain and medical disease can masquerade remarkably convincingly as behavioral problems.

The sooner we understand what a dog is trying to tell us, the sooner we can make their world feel safer.

Dr. Kathryn Dench, MA VetMB MRCVS

Dr. Kathryn Dench

With nearly two decades of experience, Cambridge veterinarian Dr. Kathryn Dench is dedicated to enhancing animal health through holistic practices. A member of the Royal College of Veterinary Surgeons, she focuses on preventive care over traditional methods, particularly for long-term wellness solutions in pets suffering from anxiety and chronic conditions. As Chief Scientific Advisor at Paw Origins, she champions holistic strategies and education to revolutionize pet care practices.

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