What You Need To Know About Lung Cancer

Cancer is a disease in which certain body cells don't function right, divide very fast and produce too much tissue that forms a tumor. A leading cause of cancer deaths in both men and women is probably lung cancer. This is the number one cause of cancer deaths surpassing breast cancer as the leading cause of deaths in women. Cancers that begin in the lungs are divided into two major types, the non-small cell lung cancer and small cell lung cancer depending on how the cells look under a microscope.

Cigarette smoking is known to be a cause of lung cancer. The risk of developing the disease increases with the number of cigarettes smoked particularly if the person starts to smoke at a young age. The person's risk of developing lung cancer may be reduced slightly if you smoke filtered and low tar cigarettes, but it is still far greater than that of a non-smoker. Lung cancer has always been more common in men, particularly those over the age of 40, as more men used to smoke than women. Considerably, there are a growing number of women having lung cancer since women have started smoking. About 90% of all lung cancer deaths among women are from smoking. The risk of lung cancer goes down quite quickly if the person stops smoking and after about fifteen years, the person's chances of developing the disease are similar to that of a non-smoker. Passive smoking or the breathing in other people's cigarette smoke, slightly increases the risk for lung disease and lung cancer, although the risk is still much less that if you smoke yourself.

Usually, the symptoms of lung cancer do not appear until the disease is in an advanced stage. Some are diagnosed early because they are found as a result of tests for other medical conditions. Screening examinations are done to detect a disease in people without symptoms of the disease. And since lung cancer usually spreads beyond the lungs before causing any