In this article, we will explore the common reasons why dogs cough. You will gain a better understanding of the various factors that can cause coughing in dogs, such as respiratory infections, heart conditions, allergies, and foreign bodies.
By learning about these potential causes, you will be able to identify when your dog may need veterinary care and take appropriate actions to help them. Understanding why dogs cough can help you ensure the health and well-being of your furry companion.

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Common Causes of Coughing in Dogs

Coughing in dogs is a common symptom that can be caused by a variety of factors. It is important for dog owners to understand the potential causes of coughing in order to provide their pets with the appropriate care and treatment. Here are some common causes of coughing in dogs:

Respiratory infections

Respiratory infections, such as pneumonia or bronchitis, can lead to coughing in dogs. These infections can be caused by bacteria, viruses, or fungi, and can result in inflammation of the respiratory tract. Dogs with respiratory infections may have a persistent cough, and difficulty breathing, and may exhibit other symptoms such as fever or nasal discharge.


Just like humans, dogs can also suffer from allergies. Allergens such as pollen, dust mites, or certain foods can trigger an allergic reaction in dogs, leading to coughing. Allergic coughs are often accompanied by other symptoms like sneezing, itching, or watery eyes. Identifying and avoiding the allergen can help alleviate the coughing symptoms in allergic dogs.

Kennel cough

Kennel cough, also known as infectious canine tracheobronchitis, is a highly contagious respiratory infection that can cause a persistent cough in dogs. It is commonly spread in places where dogs are in close contact with each other, such as kennels, dog parks, or grooming salons. Kennel cough is usually caused by a combination of viruses and bacteria, and can be prevented through vaccination.

Heart disease

Heart disease can also be a cause of coughing in dogs. When the heart is not functioning properly, it can lead to fluid accumulation in the lungs, causing coughing. Dogs with heart disease may also exhibit other symptoms such as difficulty breathing, loss of appetite, and lethargy. Treating the underlying heart condition is essential in managing the coughing symptoms.

Collapsing trachea

In dogs with a collapsing trachea, the cartilage rings that support the trachea weaken, causing the trachea to flatten and narrow. This can lead to coughing, especially during exercise or excitement. Small dog breeds, such as Pomeranians or Chihuahuas, are more prone to this condition. Managing the coughing symptoms of a collapsing trachea may involve medication or, in severe cases, surgery.

Symptoms of Coughing in Dogs

Recognizing the symptoms associated with coughing in dogs is crucial in determining the underlying cause and seeking appropriate veterinary care. Here are some common symptoms that may accompany coughing in dogs:

Persistent cough

A persistent or chronic cough is one of the most common symptoms of respiratory issues in dogs. It may vary in intensity, frequency, and sound, depending on the cause of the cough. If your dog has been coughing for more than a few days, it is important to seek veterinary care for a proper diagnosis.

Wheezing sounds

Wheezing sounds, often described as a high-pitched whistling noise, can accompany coughing in dogs. Wheezing indicates obstruction in the airways, which can be caused by inflammation, mucus build-up, or narrowing of the air passages.

Difficulty breathing

Coughing can sometimes be associated with difficulty breathing or shortness of breath in dogs. This can be due to various factors, such as respiratory infections, heart problems, or obstructed airways.

Loss of appetite

Coughing and respiratory issues can often lead to a loss of appetite in dogs. If your dog is coughing and showing a decreased interest in food, it may be an indication of an underlying medical condition that requires attention.


Dogs experiencing coughing episodes may exhibit lethargy or a lack of energy. This can be a result of reduced oxygen flow, discomfort associated with coughing, or the overall impact of an underlying illness.

Why Do Dogs Cough?

When to Seek Veterinary Care

While occasional coughing in dogs may not always be a cause for concern, there are certain circumstances when it is important to seek veterinary care for your furry friend. Here are some situations that warrant a visit to the veterinarian:

Coughing lasts for more than a few days

If your dog’s coughing persists for more than a few days or if it becomes more frequent or severe, it is essential to consult a veterinarian. Prolonged or worsening coughing can indicate an underlying condition that requires medical intervention.

Cough is accompanied by other severe symptoms

If your dog’s cough is accompanied by other severe symptoms such as difficulty breathing, high fever, excessive lethargy, coughing up blood, or a bluish tinge to the gums or tongue, it is crucial to seek immediate veterinary care. These symptoms could indicate a serious and potentially life-threatening condition.

Coughing becomes progressively worse

If your dog’s coughing episodes become progressively worse, despite initial treatment or management, it is important to have your pet reassessed by a veterinarian. Worsening coughing may indicate a need for a different treatment approach or further investigation into the underlying cause.

Concern for underlying medical condition

If you have any concerns or suspicions about the underlying cause of your dog’s coughing, it is always best to consult a veterinarian. They can perform a thorough examination, conduct necessary tests, and provide appropriate treatment options based on their findings.

Diagnosing the Cause of Canine Cough

Determining the exact cause of coughing in dogs can be challenging as it can be attributed to various factors. Luckily, there are several diagnostic techniques that veterinarians utilize to identify the underlying cause. These may include:

Physical examination

A thorough physical examination of your dog allows the veterinarian to assess their overall health and check for any abnormalities. They may listen to the lungs and heart for any abnormal sounds, examine the throat and mouth, and feel for enlarged lymph nodes or other organs.

X-rays or other imaging tests

X-rays or other imaging tests, such as ultrasound or CT scans, may be recommended to evaluate the lungs, heart, or airways. These tests can help identify any abnormalities or changes that may be causing the coughing symptoms.

Blood tests

Blood tests can provide valuable information about your dog’s overall health and detect any underlying infections or imbalances. They can also help determine if there are any underlying heart conditions that may be contributing to the coughing.

Sampling mucus or fluid

Collecting samples of mucus or fluid from the respiratory tract can be useful in identifying the specific cause of the cough. This may involve a tracheal wash or bronchoscopy, where a thin tube is inserted into the airways to collect samples for laboratory analysis.

Bronchoscopy or tracheal wash

Bronchoscopy or tracheal wash procedures allow for direct visualization of the airways and collection of samples. These procedures may be recommended if the underlying cause of coughing cannot be determined through other diagnostic methods.

Treatment Options for Coughing Dogs

The treatment of coughing in dogs depends on the underlying cause identified through diagnostic procedures. Here are some common treatment options:

Medication to treat underlying cause

If the coughing is due to a specific condition, such as a respiratory infection or heart disease, medication may be prescribed to target the underlying cause. Antibiotics, antiviral drugs, or heart medications may be prescribed to address the specific condition affecting your dog.

Cough suppressants

In certain cases, cough suppressants may be prescribed to provide temporary relief from the cough and allow your dog to rest and heal. However, it is important to note that cough suppressants should only be used under the guidance of a veterinarian, as they can mask the symptoms of an underlying condition.

Antibiotics for infections

If the coughing is caused by a bacterial infection, antibiotics may be prescribed to help clear the infection. It is important to complete the full course of antibiotics, even if symptoms improve, to prevent the development of antibiotic-resistant bacteria.

Heart medications

If heart disease is the underlying cause of the cough, medications may be prescribed to manage the condition. These medications can help improve heart function, reduce fluid build-up in the lungs, and alleviate coughing symptoms.

Surgery for certain conditions

In some cases, surgical intervention may be necessary to treat the underlying cause of coughing. This may involve procedures to repair a collapsing trachea or remove obstructions from the airways. Surgical options will depend on the specific condition affecting your dog and should be discussed with a veterinarian.

Why Do Dogs Cough?

Home Care for Dogs with Cough

In addition to veterinary treatment, there are several measures that can be taken at home to help alleviate coughing symptoms and promote your dog’s recovery. Here are some home care tips for dogs with a cough:

Provide a calm and stress-free environment

Creating a calm and stress-free environment can help reduce the frequency and intensity of coughing episodes. Keep noise levels low, avoid exposure to irritants, and provide a comfortable and quiet resting area for your dog.

Keep the dog hydrated

Ensure that your dog has access to fresh water at all times to stay hydrated. This can help soothe the throat and alleviate coughing symptoms.

Avoid irritants in the environment

Minimize exposure to irritants in your dog’s environment that may trigger or exacerbate coughing. This includes avoiding exposure to cigarette smoke, chemical fumes, or strong perfumes.

Follow veterinarian’s instructions for medication

If your dog has been prescribed medication, it is important to follow the veterinarian’s instructions carefully. Administer the medication as prescribed and complete the full course, even if the coughing symptoms improve.

Monitor the dog’s condition closely

Keep a close eye on your dog’s condition and monitor any changes in coughing frequency or severity. Contact the veterinarian if there are any concerns or if the coughing persists or worsens.

Preventive Measures for Canine Cough

While some causes of coughing in dogs cannot be prevented, there are several measures that can reduce the risk of coughing episodes. Here are some preventive measures for canine cough:


Ensure that your dog is up to date on all vaccinations, including those specifically targeting respiratory infections. Vaccinations can provide protection against common causes of coughing, such as kennel cough.

Regular veterinarian check-ups

Regular check-ups with the veterinarian can help detect any underlying health issues early on, allowing for prompt intervention and treatment. It is important to keep up with annual examinations and vaccinations to maintain your dog’s health.

Good hygiene practices

Practicing good hygiene is essential in preventing the spread of respiratory infections. Regularly clean your dog’s living area, toys, and bowls, and encourage hand washing after interacting with other dogs to minimize the risk of transmission.

Avoiding exposure to sick dogs

Prevent your dog from coming into close contact with dogs that are known to be sick or displaying symptoms of a respiratory infection. This includes avoiding crowded areas or places where dogs congregate, such as kennels or dog parks, if there is an outbreak of canine cough.

Proper nutrition and exercise

Maintaining a well-balanced diet and providing regular exercise can help support your dog’s overall health and immunity. A healthy immune system can better defend against respiratory infections and reduce the likelihood of coughing episodes.

Complications and Prognosis

While coughing in dogs can sometimes be a minor issue, it can lead to complications and have a significant impact on your dog’s overall health. Here are some potential complications and the prognosis associated with coughing in dogs:

Development of pneumonia

Untreated respiratory infections or congestive heart failure can potentially lead to the development of pneumonia, a serious condition characterized by inflammation and fluid accumulation in the lungs. Pneumonia can cause severe respiratory distress and may require intensive treatment.

Worsening of underlying condition

If not properly managed, the underlying condition causing the coughing can worsen and lead to a decline in your dog’s health. It is important to seek veterinary care and adhere to the recommended treatment plan to prevent further complications.

The prognosis varies depending on the cause

The prognosis for a coughing dog depends on the underlying cause and the extent of the illness. In some cases, such as a mild respiratory infection, the prognosis may be excellent with prompt treatment. However, in cases of advanced heart disease or chronic respiratory conditions, the prognosis may be more guarded.

Early intervention improves outcomes

Early intervention is key in achieving favorable outcomes for dogs with coughing. Identifying and addressing the underlying cause promptly can improve the effectiveness of treatment and prevent the condition from progressing.

Follow-up care is important

Following veterinary recommendations for follow-up care is essential to monitor your dog’s progress and ensure that the treatment plan is effective. Regular check-ups and ongoing management of the underlying condition can help maintain your dog’s well-being.


Coughing in dogs can have various causes and should not be ignored. Prompt veterinary care, proper diagnosis, and appropriate treatment are crucial for the well-being and health of your dog. Remember to closely follow your veterinarian’s instructions in managing your dog’s cough and schedule regular check-ups to monitor their condition. With proper care and intervention, you can help your furry companion overcome their cough and enjoy a happy, cough-free life.

Frequently Asked Questions (FAQs)

Can dogs catch coughs from humans?

No, dogs cannot catch coughs from humans. The viruses and bacteria that cause respiratory infections in dogs are typically specific to dogs and different from those that affect humans.

Can coughing in dogs be a sign of a serious illness?

Yes, coughing in dogs can be a sign of a serious illness, especially if it is accompanied by other severe symptoms such as difficulty breathing, coughing up blood, or lethargy. It is important to seek veterinary care if you are concerned about your dog’s cough.

Can coughing in dogs be prevented?

While some causes of coughing in dogs cannot be prevented, there are preventive measures you can take to minimize the risk. Vaccinations, good hygiene practices, regular veterinarian check-ups, and avoiding exposure to sick dogs can help reduce the likelihood of coughing episodes.

How long does it take for a dog’s cough to go away?

The duration of a dog’s cough depends on the underlying cause. Mild respiratory infections may resolve within a week or two with appropriate treatment, while chronic conditions like heart disease or collapsing trachea may require ongoing management to control coughing symptoms.

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