Lung Cancer Causes and Symptoms

Lung cancer is the accelerated growth of abnormal cells in one or both lungs. The areas where the cells grow cease to function properly, which eventually causes breathing problems and other medical issues. There are many types of lung cancers, and they develop as a result of a variety of factors, including a person’s genetic make-up, history of smoking, work environment, and others.

Several environmental factors increase the risk of developing lung cancer, including secondhand smoke. Also, long-term exposure to asbestos, radon, industrial substances, radiation exposure, and air pollution can increase a person’s risk of developing lung cancer.

It is possible for lung cancer to develop with few to no symptoms until the cancer has reached an advanced stage. However, common lung cancer symptoms include a cough that persists, pain in the chest or back unrelated to coughing, a change in the color of sputum (phlegm), shortness of breath, stridor or harsh sounds when breathing, or coughing up blood. Symptoms outside of the respiratory region can include loss of appetite, neck or facial swelling, fatigue, weakness, and blog clots.

If you are experiencing any symptoms that concern you, see a health professional to address and resolve them.