Abnormal Breathing Sounds in cats

Author: Dr. med. vet. Gisa Löwe | Last modified: 17.02.2026
Table of contents

When to visit the vet?

Urgent see a veterinarian within 24 hours

?

RED if there is additional dyspnea, Mouth breathing, cyanosis, or apathy.

Unsure about what’s wrong with your pet? Feel free to use our Symptom Checker for more clarity

Definition

“Abnormal breathing sounds” in cats refer to unusual sounds that occur during breathing, such as wheezing, rattling, or snoring, and may indicate underlying health issues.

Can Occur with the Following Diseases:

Basics and possible causes

Breathing sounds in cats occur when airflow through the airways is obstructed or altered. This can be caused by various factors or conditions that can affect both the upper and lower respiratory tracts. The upper respiratory tract includes the nose, pharynx, and trachea, while the lower respiratory tract includes the bronchi and lungs.

A common cause of abnormal breathing sounds is a narrowing or blockage of the airways. This can be caused by inflammatory conditions, foreign objects, tumors, or anatomical abnormalities. Infections of the respiratory tract, such as a viral or bacterial infection, can also lead to such noises, as they cause swelling and mucus formation.

Asthma is another cause of abnormal breathing sounds in cats. This condition is characterized by inflammation and narrowing of the bronchi, which can lead to wheezing. Allergies can also contribute to respiratory diseases by triggering an overreaction of the immune system.

Heart diseases, especially heart failure, can also cause breathing problems and corresponding noises. Fluid accumulation in the lungs or chest due to inadequate heart function impairs breathing and leads to crackling sounds.

Some cat breeds are more susceptible to breathing sounds due to their anatomical structure. Flat-faced breeds such as Persians or British Shorthairs often have breathing problems due to their short nasal passages.

Typical accompanying symptoms

  • Cough: Cats that show abnormal breathing sounds often cough to remove mucus or foreign objects from the airways.
  • Sneezing: Frequent sneezing can indicate an infection or allergy that can also cause breathing sounds.
  • Nasal discharge: Clear or purulent nasal discharge may indicate an infection of the upper respiratory tract.
  • Difficulty breathing: Obvious effort when breathing, such as drawing in the abdomen or moving the flanks, may indicate respiratory disease.
  • Blue-tinged mucous membranes: A bluish discoloration of the mucous membranes may indicate a lack of oxygen in the blood.
  • Lethargy: An affected cat may appear tired or weak because it is less active due to breathing problems.
  • Loss of appetite: Respiratory diseases can cause a cat to eat less or stop eating altogether.

When to see a vet?

A veterinarian should be consulted if a cat shows breathing sounds that do not improve on their own within a short period of time, or if they are accompanied by other symptoms such as shortness of breath or lethargy. An immediate veterinary visit is particularly important if the cat has difficulty breathing or if the mucous membranes are bluish in color, which indicates an acute lack of oxygen.

Also, if the cat repeatedly coughs, has to sneeze, or shows nasal discharge, a visit to the veterinarian is advisable to rule out serious diseases and to start appropriate treatment. In cats with known pre-existing conditions such as asthma or heart problems, immediate action should be taken if there are changes in breathing sounds.

Symptom recognition for the pet owner and veterinary diagnostic procedure

It is important for the pet owner to pay attention to changes in the cat’s breathing pattern. These include new or increased breathing sounds, changes in the cat’s behavior, such as increased rest or avoidance of activities that could make breathing difficult.

A veterinarian will first perform a thorough clinical examination to determine the cause of the breathing sounds. This includes listening to the lungs with a stethoscope to determine the type and location of the sounds. Examination of the mucous membranes for signs of oxygen deficiency is also important.

In addition, diagnostic tests such as chest X-rays, blood tests, and possibly an endoscopy of the respiratory tract can be performed to determine the extent of the disease and to rule out other possible causes.

If an allergic reaction or asthma is suspected, a veterinarian may also order allergy tests or specific blood tests to identify the responsible allergens. In some cases, an ultrasound of the heart may also be necessary to diagnose possible heart diseases.

What the pet owner can do and professional therapy options

As a first step, the pet owner should try to keep the cat’s environment calm and stress-free, as stress often worsens breathing problems. Make sure that the affected cat is in a well-ventilated room and has access to fresh air.

Avoid moving or stressing the cat unnecessarily, and provide it with a quiet retreat. It is important that the cat has enough water available to avoid dehydration, which could worsen the symptoms.

If the cat has acute shortness of breath, do not try to administer medication without consulting a veterinarian. Administering medications that have not been specifically prescribed for the cat can worsen the situation.

In cases where an allergy is suspected, it may be helpful to remove or reduce potential allergens from the environment. These include dust, perfumes, smoking, and certain cleaning agents. It can also be useful to discuss the cat’s diet with the veterinarian to consider possible food allergies.

Regular check-ups by the veterinarian are essential to adjust the treatment and monitor the cat’s health. The pet owner should document any changes in the cat’s behavior or symptoms and provide them to the veterinarian to support the diagnosis and treatment.

Outlook on current research

The study of abnormal breathing sounds in cats has gained importance in recent years as more and more veterinarians and researchers try to better understand the underlying physiological and pathological mechanisms. Breathing sounds can range from slight crackling to loud wheezing and often occur in diseases of the upper or lower respiratory tract. Research focuses on how these sounds are created and what they say about the cat’s health. With the help of modern imaging techniques such as computed tomography and magnetic resonance imaging, attempts are made to better visualize the anatomical structures of the respiratory tract and to understand how they are changed in various diseases.

Another research approach deals with the acoustic analysis of the breathing sounds themselves. The use of sophisticated microphones and software for recording and analyzing breathing sounds can help identify specific patterns that indicate certain diseases. This technology could make it possible to diagnose respiratory diseases in cats earlier and more accurately. Researchers are working to create comprehensive databases of recorded breathing sounds to further improve the accuracy of diagnoses.

In pharmacology, research is being conducted on how various medications affect breathing sounds in diseased cats. The development of new inhalable therapies specifically tailored to cats could play an important role in the treatment of respiratory diseases in the future. Studies focus on the effectiveness and safety of these new treatment methods to improve the quality of life of affected cats.

Finally, there are also investigations into the role of genetics in breathing sounds. Certain breeds or genetic lines may be more susceptible to respiratory diseases, which can manifest as abnormal breathing sounds. The identification of genetic markers could help identify risk groups and develop preventive measures. Overall, research into abnormal breathing sounds in cats is a dynamic field that deals with both the diagnosis and the treatment of these symptoms.

Frequently asked questions

1. What are the most common types of abnormal breathing sounds in cats?
The most common abnormal breathing sounds include crackling, panting, and wheezing. These sounds may indicate a narrowing or blockage of the airways.
2. How can I tell if my cat has abnormal breathing sounds?
Pay attention to conspicuous noises when your cat breathes, especially when it is at rest. If these noises occur regularly or worsen, you should consult a veterinarian.
3. Are abnormal breathing sounds always a sign of a serious illness?
Not necessarily. While they can indicate serious diseases, abnormal breathing sounds are sometimes temporary and harmless. However, only a veterinarian can make an accurate diagnosis.
4. Is there anything I can do to relieve my cat's breathing sounds?
First, you should consult your veterinarian. In some cases, humidifiers or special diets can help to relieve the symptoms. However, avoid unauthorized treatments without professional advice.
5. What role does the environment play in abnormal breathing sounds?
The environment can have a big impact. Dust, smoke, and other air pollution can irritate the airways and cause or worsen abnormal breathing sounds.
6. Are there breeds that are more prone to abnormal breathing sounds?
Yes, brachycephalic breeds such as Persian cats are more prone to breathing problems due to their head shape. These breeds often have narrower airways, which can lead to abnormal breathing sounds.
7. Can stress cause abnormal breathing sounds in cats?
Yes, stress can worsen or even trigger breathing problems. In stressed cats, breathing can accelerate, which can lead to abnormal noises.
8. How are abnormal breathing sounds diagnosed in cats?
The veterinarian will usually perform a thorough physical examination and may use imaging techniques such as X-rays or ultrasound to determine the cause of the breathing sounds.
9. Can abnormal breathing sounds be treated?
Yes, the treatment depends on the cause. Possible treatments include medications, surgery, or changes to the living environment to alleviate the symptoms.
10. When should I take my cat to the vet if it has abnormal breathing sounds?
You should see a veterinarian if the breathing sounds occur suddenly, worsen, or are accompanied by other symptoms such as cough, vomiting, or lethargy.