How Is Lung Cancer Caused. A small portion of lung cancers occur in people with no known risk factors for the disease. When a person inhales asbestos microscopic fibers can become lodged in their lung tissue.
Breathing in other hazardous substances especially over a long period of time can also cause lung cancer. Over many years the fibers can cause enough genetic and cellular damage to cause lung cells to turn cancerous. It s responsible for more than 70 of cases.
At first your body may be able to repair this damage.
Most people diagnosed with lung cancer are 65 or older. When you inhale cigarette smoke which is full of cancer causing substances carcinogens changes in the lung tissue begin almost immediately. At first your body may be able to repair this damage. When a person inhales asbestos microscopic fibers can become lodged in their lung tissue.
