Understanding Lung Cancer
Lung cancer begins in the lungs and develops when cells in the lung begin to grow out of control. Normal cells grow, divide and die as the body needs them.
Cancer cells act differently from normal cells because of damage or a change in the cells' DNA (genes that tell the cells what to do).Cancer cells grow at an accelerated rate but do not die. Instead, they continue to grow and form a group of abnormal cells called a tumor.
What are the signs or symptoms of lung cancer?There can be several symptoms of lung cancer including:
- cough that won't go away
- coughing up blood
- chest, back or shoulder pain
- shortness of breath
- wheezing
- hoarseness
- being tired
- weight loss
If you or someone you know has symptoms or may be at risk for lung cancer, talk with your health care provider about your concerns.
What are the causes of lung cancer?
Smoking is the leading cause of lung cancer and is responsible for 87% of lung cancer cases. Exposure to secondhand smoke can also cause lung cancer. It is estimated that 20,000 lung cancer cases each year are caused by exposure to secondhand smoke. In addition, exposure to radon, a naturally occurring, odorless, colorless gas in your home can cause lung cancer.
- Do not smoke! If you smoke or use tobacco in any form, quit. As soon as you quit, your body will begin to repair the damage done by smoking.
- Get your home tested for radon. Simple, inexpensive test kits are available at most home improvement stores.
- Avoid secondhand smoke. Make your home and car smoke-free. Encourage family, friends and co-workers to quit smoking.
How can I find lung cancer clinical trials in my area?
Respiratory Health Association of Metropolitan Chicago offers links to local clinical trials in lung cancer and other lung diseases as resource for people seeking information about these opportunities. For more information, visit our Clinical Trials page.
For more information, visit our Lung Cancer Library.
