Lung disease refers to disorders that affect the lungs, the organs that allow us to breathe. Breathing problems caused by lung disease may prevent the body from getting enough oxygen. Examples of lung diseases are:
- Asthma, chronic bronchitis, and emphysema
- Infections, such as influenza and pneumonia
- Lung cancer
- Sarcoidosis and pulmonary fibrosis
Let’s focus here on the lung cancer because it’s the most severe lung disease. Usually there are no warning signs of early lung cancer. By the time most people with lung cancer have symptoms, the cancer has become more serious. However, symptoms of lung cancer may include:
- Chronic cough
A cough that you have had for a month or longer is considered chronic. This is an important early symptom that tells you something is wrong with your respiratory system.
2. Shortness of breath
It’s not normal to experience shortness of breath that doesn’t go away after exercising, or that you have after little or no exertion. Labored or difficult breathing—the feeling that it is hard to breathe in out—is also a warning sign.