Bronchitis
Body System: Respiratory System | Area Affected: Lungs, airways, nasal passages, and throat
Doctor to Consult: Pulmonologist or ENT Specialist
What It Is
Bronchitis: Bronchitis is inflammation of the bronchi in the lungs that causes coughing. Bronchitis usually begins as an infection in the nose, ears, throat, or sinuses. The infection then makes its way down to the bronchi. Symptoms include coughing up sputum, wheezing, shortness of breath, and chest pain. Bronchitis can be acute or chronic.
Why It Happens
Bronchitis arises due to factors affecting the Respiratory System. Respiratory conditions commonly result from infections, allergens, pollutants, or abnormal immune responses affecting the airways and lung tissue. While individual cases vary, a combination of genetic susceptibility, lifestyle factors, and environmental exposures typically contribute to the development of Bronchitis.
Who Gets It / Risk Factors
Who Is at Risk for Bronchitis
Individuals of all ages may be affected, with children and older adults facing higher vulnerability to respiratory illness.
A family history of respiratory system conditions may increase susceptibility to Bronchitis.
Contributing Factors
Smoking, air pollution exposure, occupational dust/chemical inhalation, and a history of childhood respiratory infections.
Co-existing health conditions such as asthma, allergies, or immune system disorders may compound the risk.
When to Seek Emergency Care
Severe difficulty breathing, blue discoloration of lips, or coughing up blood related to Bronchitis.
Sudden or rapidly worsening symptoms that impair basic daily function.
Difficulty breathing, severe pain, loss of consciousness, or high fever with confusion.
Medical Overview
A professional summary of diagnosis, treatment, and prevention.
Coughing, wheezing, or shortness of breath commonly experienced with Bronchitis.
Nasal congestion, throat irritation, or chest tightness associated with Bronchitis.
Changes in daily functioning or comfort levels that persist beyond a few days.
Scientific References
This content is based on established clinical guidelines and public health resources from the following authoritative sources.
Medically Reviewed for Accuracy
Medical Advisory Board
•Last reviewed: March 20, 2026Content is aligned with established clinical guidelines from authoritative medical institutions, including MedlinePlus (U.S. National Library of Medicine), the CDC, the NIH, and the NHS. All content is reviewed by our medical advisory board for accuracy and safety.