Dog Health Health Check

Dog Anxiety or Restlessness - Causes, Diagnosis & When to See a Vet

Last updated: March 19, 2026 • 856 words
Veterinary Disclaimer: This article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian with any questions about your dog's health.

Dog Anxiety or Restlessness - Causes, Diagnosis & When to See a Vet

> Disclaimer: This article is for educational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian when your dog shows behavioral or medical concerns.

Quick Summary

Anxiety and restlessness in dogs can stem from behavioral triggers, medical conditions, or a combination of both. Common signs include pacing, trembling, panting, and avoidance. While separation anxiety and noise phobias are familiar causes, pain, thyroid imbalances, and neurological issues can also produce anxious behavior. A veterinary exam helps distinguish medical from behavioral causes and guides appropriate treatment.

What Does Anxiety or Restlessness Look Like in Dogs?

Dogs may show anxiety or restlessness through:

Symptoms may be situational (e.g., before a storm) or constant.

Common Causes of Anxiety or Restlessness in Dogs

  1. Separation anxiety – Stress when left alone; often seen in breeds that bond strongly (Labrador Retrievers, German Shepherds, Cavalier King Charles Spaniels).
  1. Noise phobia – Fear of thunder, fireworks, or loud machinery. Common in herding and hunting breeds (Border Collies, Cocker Spaniels).
  1. Pain or discomfort – Arthritis, dental disease, or internal illness. Dogs may pace or appear restless when lying down is painful.
  1. Cognitive dysfunction syndrome – Older dogs may pace at night, appear confused, or show sundowning. Common in dogs over 10.
  1. Hyperthyroidism (rare in dogs) – More common is hypothyroidism affecting energy; thyroid testing helps rule out metabolic causes.
  1. Cushing's disease – Excess cortisol can cause increased thirst, panting, and restlessness. Common in older, small to medium breeds.
  1. Neurological conditions – Seizures, vestibular disease, or brain changes can cause anxiety-like behavior.
  1. Gastrointestinal upset – Nausea or abdominal pain may cause pacing and unease.
  1. Environmental changes – Moving, new pets, schedule changes, or loss of a family member.
  1. Breed predisposition – Breeds like Greyhounds, Vizslas, and Australian Shepherds may be more prone to anxiety-related behaviors.

When Is Anxiety or Restlessness an Emergency?

Seek immediate veterinary care if your dog:

How Veterinarians Diagnose the Cause

The diagnostic approach includes:

  1. History – Onset, triggers, duration, and any life changes
  1. Physical exam – Assessment for pain, abdominal discomfort, or neurological abnormalities
  1. Bloodwork – Thyroid, cortisol, CBC, and chemistry to screen for metabolic and organ issues
  1. Imaging – X-rays or ultrasound if abdominal or musculoskeletal concerns
  1. Behavioral questionnaire – To assess separation anxiety, noise phobia, or generalized anxiety
  1. Rule-out for pain – Trial of pain medication in seniors when arthritis is suspected

Treatment Options

Prevention Tips

Frequently Asked Questions

Q: Can anxiety in dogs be genetic? Yes. Some breeds are predisposed to anxiety. Environment and early experiences also play a significant role. Q: Do calming supplements work? Some products (e.g., L-theanine, certain pheromones) may help in mild cases. Discuss options with your vet; severe anxiety often requires prescription medication. Q: How long does it take for anxiety medication to work? Many SSRIs take 4–8 weeks for full effect. Situational medications (e.g., for storms) can work within an hour when given in advance. Q: Will more exercise fix anxiety? Exercise can help, but it is not a cure. Over-exercise in anxious dogs can sometimes worsen arousal; balance with calming activities. Q: Can pain cause restlessness? Yes. Pain, especially from arthritis or abdominal issues, is a common cause of pacing and inability to settle. Senior dogs should be evaluated for pain.

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