What does kennel cough sound like in dogs?

It often sounds like a harsh, honking cough — as if the dog is trying to clear something from the throat. It may be triggered by excitement, exercise, or pressure on the neck from a collar.

Can heart disease cause coughing in dogs?

Yes. Enlarged hearts or fluid in the lungs (congestive heart failure) cause a soft, persistent cough, especially at night or after lying down. This is common in older small breeds.

When should I take my coughing dog to the vet?

See your vet if coughing lasts more than a few days, worsens, includes blood, or is paired with breathing difficulty, blue gums, lethargy, or loss of appetite. Any cough in a puppy warrants prompt attention.

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Coughing in dogs

Quick answer

Dog coughing has many causes — **kennel cough, heart disease, tracheal collapse, allergies, and foreign bodies** are among the most common. A honking cough after boarding may be infectious; a soft cough at night in an older dog may signal heart problems. Contact your vet if coughing persists, worsens, or is accompanied by **breathing difficulty or lethargy**.

Key takeaways

It often sounds like a harsh, honking cough — as if the dog is trying to clear something from the throat. It may be triggered by excitement, exercise, or pressure on the neck from a collar.
Yes. Enlarged hearts or fluid in the lungs (congestive heart failure) cause a soft, persistent cough, especially at night or after lying down. This is common in older small breeds.
See your vet if coughing lasts more than a few days, worsens, includes blood, or is paired with breathing difficulty, blue gums, lethargy, or loss of appetite. Any cough in a puppy warrants prompt attention.

The full guide

Causes, symptoms, treatment options and when to call your vet — in the complete plain-English guide.

Read: Why Is My Dog Coughing?Check symptoms

Frequently Asked Questions

What does kennel cough sound like in dogs?: It often sounds like a harsh, honking cough — as if the dog is trying to clear something from the throat. It may be triggered by excitement, exercise, or pressure on the neck from a collar.
Can heart disease cause coughing in dogs?: Yes. Enlarged hearts or fluid in the lungs (congestive heart failure) cause a soft, persistent cough, especially at night or after lying down. This is common in older small breeds.
When should I take my coughing dog to the vet?: See your vet if coughing lasts more than a few days, worsens, includes blood, or is paired with breathing difficulty, blue gums, lethargy, or loss of appetite. Any cough in a puppy warrants prompt attention.