What is the Difference Between Chronic Bronchitis and Emphysema?

🆚 Go to Comparative Table 🆚

Chronic bronchitis and emphysema are both chronic obstructive pulmonary diseases (COPD) that affect the respiratory system, causing shortness of breath and other symptoms. However, they differ in the specific areas of the lungs they affect and the nature of their symptoms.

Chronic Bronchitis:

  • Affects the bronchi, the tubes that carry air to and from the lungs.
  • Inflames the airways, causing them to produce excess mucus.
  • Symptoms include shortness of breath, fatigue, fever, cough, and excess mucus production.
  • Main symptom is a long-term cough that produces mucus.

Emphysema:

  • Affects the alveoli, the tiny air sacs in the lungs where oxygen and carbon dioxide exchange takes place.
  • Gradually destroys the alveoli, weakening them until they break.
  • Symptoms include shortness of breath during everyday activities and exercise, daily or almost daily coughing, wheezing, rapid breathing and heartbeat, barrel-shaped chest, fatigue, difficulty sleeping, weight loss, heart issues, and depression or anxiety.

While both conditions can cause breathing difficulty and shortness of breath, the primary difference between chronic bronchitis and emphysema is the specific area of the lungs they affect: bronchitis inflames and obstructs the airways, while emphysema destroys the alveoli. Both conditions are typically caused by years of cigarette smoking or exposure to irritating substances such as chemical pollution or smog.

Comparative Table: Chronic Bronchitis vs Emphysema

Chronic bronchitis and emphysema are two different lung conditions that fall under the term chronic obstructive pulmonary disease (COPD). Here is a table highlighting the differences between the two:

Feature Chronic Bronchitis Emphysema
Definition A lung condition that destroys tiny hairs (cilia) in the airways of the lungs. A lung condition where the air sacs (alveoli) become damaged, resulting in less oxygen entering the blood.
Symptoms - Shortness of breath
- Fatigue
- Fever
- Cough
- Excess mucus production.
- Shortness of breath, which worsens over time.
Affected Part of Lung Affects the airways. Affects the air sacs.
Causes Inflammation in the lung's main airways (bronchi). Damage to the walls of tiny air sacs (alveoli) in the lungs.
Diagnosis Doctors use a variety of tests, including spirometry (assessing how fast a person can blow air out from their lungs). Doctors may perform imaging tests (chest X-ray or CT scan) and an alpha-1 antitrypsin (AAT) test.

Both conditions have similar symptoms and are typically caused by long-term cigarette smoking or exposure to irritating substances. People with COPD may have both emphysema and chronic bronchitis, making it challenging to differentiate between the two. However, understanding the specific symptoms and the affected parts of the lung can help in managing the conditions.