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Bronchitis
Bronchitis is inflammation of the airways that carry air to the lungs, usually after a cold or chest infection. Acute bronchitis is common and usually clears on its own.
Causes & risk factors
- Viral infection (most acute cases)
- Bacterial infection (less common)
- Smoking and secondhand smoke
- Air pollution, dust or fumes
- Following a cold or flu
Common symptoms
Tests & diagnosis
- Usually diagnosed by symptoms and examination
- Chest X-ray (to rule out pneumonia)
- Sputum test if needed
- CRP if infection is suspected
Treatment & management
- Rest and plenty of fluids
- Fever and pain relief as needed
- Warm drinks and honey may ease cough
- Antibiotics only if a bacterial cause is likely
- Avoid smoke and irritants
When to see a doctor urgently
- Cough lasting more than 3 weeks
- Coughing up blood — see a doctor urgently
- High fever, severe breathlessness or chest pain — urgent care
- Repeated episodes or an existing lung/heart condition
Not a diagnosis. MedDroid gives general educational information about bronchitis. It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Do I need antibiotics for bronchitis?
Usually no. Most acute bronchitis is viral and antibiotics do not help. They are only used if a bacterial infection is likely.
How is it different from pneumonia?
Bronchitis inflames the airways, while pneumonia infects the lung tissue itself and is generally more serious. A chest X-ray can tell them apart.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.