Lung cancer is responsible for the most cancer-related deaths for both men and women throughout the world.
Lung cancer usually has no symptoms in its early stages. However, the following signs of the disease start to appear afterwards:
- Chronic, hacking, raspy coughing, which sometimes has mucus stained with blood.
- Changes in a cough that you’ve had for a long time
- Respiratory infections that keep coming back, including bronchitis or pneumonia
- Shortness of breath that gets worse
- Lasting chest pain
- Swelling of the neck and face
- Pain and weakness in the shoulder, arm, or hand
- Fatigue, weakness, loss of weight and appetite, fever that comes and goes, severe headaches, and body pain
- Trouble swallowing
These problems usually arise because the breathing passages are blocked or because the cancer has spread farther into the lung, nearby areas, or other parts of the body.
The most acknowledged cause of lung cancer is tobacco smoking over a long time frame including second hand smoking.
Another and the second most cause of lung cancer is exposure to radon. Radon is an invisible, odorless, radioactive gas that can build up in homes. Experts say that nearly 1 out of 15 houses in the U.S. has elevated levels of radon.
However, lung cancer is preventable and treatable able.