Chronic Bronchitis in Dogs & Cats: Symptoms, Diagnosis & Long-Term Care [2025]
Chronic bronchitis is a common respiratory condition requiring long-term medication management and avoidance of environmental irritants
When to See a Vet
Seek emergency care immediately
- •Blue or purple discoloration of the lips or gums
- •Brief loss of consciousness or complete fainting
- •Difficulty breathing or visibly labored breathing
Schedule a clinic visit soon (within 24–72 hours)
- •Persistent or recurring cough while still able to eat and drink
- •Occasional vomiting or coughing up white foam
- •Wheezing or reduced exercise tolerance after activity
01What symptoms signal that something is wrong?
Chronic bronchitis typically presents as a prolonged or recurrent cough. As the condition worsens, warning signs may include vomiting, faster breathing, and changes in energy and appetite.
- Recurrent or persistent cough, often worse at night or after exercise
- Repeated retching or vomiting of white foam or partially digested food
- Increased respiratory rate or heart rate, sometimes accompanied by wheezing
- Lethargy and noticeably reduced activity level
- Reduced appetite or changes in bathroom habits (constipation or diarrhea)
Seek emergency care immediately if you notice the following symptoms:
- ⚠️ Blue or purple discolouration of the lips or gums (cyanosis)
- ⚠️ Brief fainting or loss of consciousness
- ⚠️ Severe respiratory distress or obvious difficulty breathing
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02How can I assess the situation at home? Key observations and when to go to the emergency clinic
Observing and recording key information at home helps your vet quickly understand the condition and prioritise the most appropriate diagnostics.
- Track how often coughing occurs, how long each episode lasts, and when it happens (e.g. at night)
- Use your phone to record video or audio of coughing and wheezing episodes
- Note the number of vomiting episodes, what came up (foam, food), and the timing
- Watch for changes in appetite, water intake, and activity level
- Test exercise tolerance over a short distance (does your pet breathe harder after a brief walk?)
- If symptoms worsen or breathing becomes laboured, seek veterinary care promptly
03How will the vet make a diagnosis? Common diagnostic tests
At the clinic, your vet will use physical examination, imaging, and laboratory analysis to identify the underlying cause and rule out other conditions.
Physical examination
assessment of breathing pattern and auscultation for abnormal lung sounds
Cardiac ultrasound (echocardiography)
evaluation of heart function and exclusion of a cardiac cause
Chest X-ray or CT scan
assessment of airway and lung changes
Tracheal or pulmonary cytology and tissue biopsy sampling to characterise the type of inflammation
Bacterial culture and antimicrobial sensitivity testing (if infection is suspected)
Referral to a respiratory or thoracic specialist for further evaluation if needed
04How should my pet be treated and cared for after diagnosis? Medications, dietary adjustments, and care guide
Chronic bronchitis often requires long-term management. Treatment combines medication, supportive care, and adjustments to the living environment.
- Follow the vet's prescribed medication schedule and attend regular check-ups to monitor efficacy and side effects
- Corticosteroid therapy may be used short-term or long-term depending on disease severity — ongoing medical supervision is required
- Oxygen support and hospitalisation for observation may be provided during acute respiratory distress
- Maintain a healthy weight and a low-irritant diet; avoid inhaled irritants such as cigarette smoke and dust
- Return for regular follow-up appointments to monitor imaging and clinical progress
- Keep indoor air well-ventilated at home and minimise sources of irritation such as air fresheners and smoke
05What should I prepare before the appointment? Key information to help your vet reach a diagnosis quickly
This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.