Dogs Panting Excessively: When to Worry and What to Do
A practical guide to understanding why your dog is panting more than usual, what the common causes are, and when the situation may require prompt veterinary attention.
Published: 2026-07-29 Updated: 2026-07-29 Reading Time: 6 minutes
Quick Answer
Panting is a normal way for dogs to cool themselves down, regulate body temperature, and express excitement or stress. Excessive panting means your dog is panting more than usual, at unusual times, or without an obvious reason. If the panting does not stop after rest, happens in cool conditions, or is accompanied by other signs such as lethargy, coughing, or pale gums, it may indicate an underlying health issue that should be evaluated by a veterinarian.
SYMPTOM TRIAGE
Answer a few questions about your dog's signs and receive general guidance on how urgently to seek veterinary care.
This tool does not diagnose conditions or replace a veterinarian.
What Does Normal Panting Look Like
Panting is the primary mechanism dogs use to cool down. Unlike humans, dogs do not sweat effectively through their skin, so they rely on rapid, shallow breathing through the mouth to release heat.
Normal panting is typically:
- Triggered by exercise, warmth, excitement, or mild stress
- Relatively brief and stops once the dog rests or cools down
- Open-mouthed with a relaxed tongue, but without distress
- Even in rhythm and not overly laboured
Understanding your own dog's baseline panting behaviour is helpful. Some breeds, such as Bulldogs, Pugs, and Pekingese, pant more often because of their flat faces (brachycephalic anatomy), which makes breathing less efficient.
Common Causes of Excessive Panting
When panting becomes excessive, it means the behaviour has changed in frequency, intensity, or context. Several factors may contribute.
Heat and Overexertion
High temperatures and vigorous exercise are the most straightforward reasons for heavy panting. Dogs can overheat quickly, especially in warm weather, inside a car, or after sustained activity. Brachycephalic breeds, older dogs, and those with thick coats are more susceptible to heat-related panting.
Stress, Anxiety, and Pain
Emotional states such as anxiety, fear, or general stress can cause noticeable panting. Situations like thunderstorms, fireworks, car travel, or changes in routine may trigger this response. Pain is another common but sometimes overlooked cause. Dogs may pant when they are experiencing discomfort from an injury, joint problem, or internal issue, even if the source of pain is not immediately visible.
Medical Conditions
A number of health conditions can present with excessive panting as an early or prominent sign. These may include:
- Respiratory disorders — conditions such as laryngeal paralysis, tracheal collapse, or pneumonia can make breathing more difficult and increase panting
- Heart disease — when the heart cannot circulate blood efficiently, the body may attempt to compensate through faster breathing
- Cushing's disease (hyperadrenocorticism) — this hormonal condition is sometimes associated with increased panting, along with other signs such as increased thirst and a pot-bellied appearance
- Fever — an elevated body temperature from infection or inflammation can cause panting similar to heat exposure
- Metabolic disorders — conditions affecting the thyroid, kidneys, or other organs may sometimes lead to changes in breathing patterns
Observing Your Dog's Panting
When assessing whether your dog's panting is unusual, consider the following questions:
- Is the panting happening at rest or in a cool environment?
- Has the intensity or sound of the panting changed?
- Are there other signs present, such as coughing, drooling, weakness, or loss of appetite?
- How long has the excessive panting been going on?
Noting these details can be valuable when speaking with a veterinarian.
When to Contact a Veterinarian
Seek veterinary attention promptly if your dog's excessive panting is accompanied by any of the following:
- Pale, blue, or very dark gums
- Difficulty breathing or breathing with noticeable effort
- Collapse, staggering, or inability to stand
- Coughing or gagging alongside panting
- Excessive drooling or foaming at the mouth
- Distended or firm abdomen
- Rectal temperature above 40 C (104 F)
These signs may indicate a serious or rapidly worsening condition that needs immediate assessment.
A non-urgent veterinary visit is reasonable when:
- The panting has gradually increased over days or weeks without other dramatic signs
- Your dog appears otherwise comfortable but pants more than expected
- You have noticed changes such as increased thirst, weight gain, or reduced exercise tolerance alongside the panting
Even gradual changes can be significant, and a veterinary examination can help identify the cause early.
Frequently Asked Questions
Is panting the same as laboured breathing?
No. Panting is typically rapid and shallow, while laboured breathing often involves increased effort, flared nostrils, or audible distress. Laboured breathing may indicate a more urgent respiratory or cardiac problem.
Can I give my dog water while they are panting excessively?
Yes. Offer small amounts of cool (not ice-cold) water at regular intervals. Avoid allowing the dog to drink a large volume all at once, as this can sometimes cause vomiting or discomfort.
Should I be concerned if my older dog starts panting more?
Age-related changes, including reduced heart and lung efficiency, can increase panting. However, new or worsening panting in an older dog is worth discussing with a veterinarian, as it may also signal conditions such as heart disease, Cushing's disease, or arthritis pain.
Can stress alone cause excessive panting?
Yes. Situations that cause anxiety or fear — loud noises, separation, travel, or unfamiliar environments — can trigger panting even when there is no physical health concern. If stress-related panting occurs frequently, a veterinarian or qualified behaviourist can help identify management strategies.
SYMPTOM TRIAGE
If your dog is panting more than usual and you are unsure whether it is an emergency, use the Symptom Triage tool for general guidance on how urgently to seek care.
Sources
- Merck Veterinary Manual: "Panting in Dogs"
- American Kennel Club (AKC): "Why Do Dogs Pant?" — akc.org
- VCA Animal Hospitals: "Panting in Dogs" — vcahospitals.com
This article and the PawAI Symptom Triage tool provide general educational information only. They cannot examine your pet, make a diagnosis, or replace advice from a licensed veterinarian. Contact a veterinarian promptly if symptoms are severe, worsening, persistent, or accompanied by emergency warning signs.