Symptom: Noisy Breathing – Why is my pet's breathing so noisy?
Common types of noisy breathing
How can it sound?
Stertor breathing (snoring or rattling) is a low-pitched, snoring or congested sound is caused by the vibration of soft tissues or fluid in the back of the throat or nose. It is common in short-nosed (brachycephalic) breeds, such as Pugs, Bulldogs, and Persian cats, due to their compressed airways.
Stridor (wheezing or high-pitched) is a high-pitched, whistling or rasping sound indicates a narrowing or partial blockage of more rigid tissues in the windpipe (trachea) or voice box (larynx). Causes can include foreign objects, laryngeal paralysis, or a collapsing trachea.
Crackles (rattling or crinkling): sounds similar to crinkling plastic, is often caused by fluid in the lungs (alveoli). It is a serious sign of conditions like pneumonia or heart disease.
How can it look?
Laboured breathing: the chest or abdomen moves with exaggerated effort.
Rapid breathing: breathing faster than 30 breaths per minute while resting.
Open-mouth breathing: normal for dogs to pant, but in cats, this is a sign of severe distress.
Abnormal posture: standing with the neck and head extended and elbows pointed out to try and open the airway.
Coughing or gagging: persistent coughing, honking sounds, or dry heaving.
Restlessness: pacing or an inability to get comfortable.
Blue or pale gums: the gums are bluish, pale, or grey instead of a healthy pink.
Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published October 2025 | Review date October 2028 | This advice is for UK pets only and is not a replacement for seeing a vet
Frequently asked questions
What are the common reasons for noisy breathing
- BOAS condition (flat face breed mainly affected)
- Laryngeal paralysis (vocal cords)
- Tracheal collapse (windpipe)
- Infections & allergies
More reading: Spring & Summer Dog Allergies
- Tumours in the throat, larynx or windpipe
- Foreign body lodged in throat or nose
- Heatstroke with excessive panting
DO’s – What can I do at home if my pet’s breathing is noisy
- Contact you vet promptly
- Stay calm, animals can sense your anxiety, which can make their breathing worse.
- Note when the noisy breathing started.
- Record whether it happens during rest, sleep, exercise, or excitement.
- If too hot, move your pet to a cool, well-ventilated area, using a fan or air conditioning.
DON'Ts – What I shouldn't do at home if my pet’s breathing is noisy
- Avoid exposing your dog to smoke and various irritants.
- Do not delay seeking veterinary care. Breathing problems can escalate quickly.
- Do not force your pet to exercise, even mild activity can put too much strain on their respiratory system.
- Do not give any medications without vet approval, over-the-counter medications can be dangerous for pets.
- Do not assume it's normal, while snoring can be normal for some pets. Noisy breathing, especially in cats or brachycephalic (flat-faced) dogs, is often a sign of an underlying issue.
When should I consider taking my pet to the vet if their breathing is noisy
If your pet shows any symptoms of noisy breathing, you should contact your vet, particularly if:
- your pet is gasping, choking, or can't catch their breath
- gums/tongue look blue, grey or pale
- he/she collapses or is extremely lethargic
- noisy breathing is sudden and severe
You should go straight to your vet as an emergency