Certain lung cancer cells produce a substance that causes a sharp drop in the level of sodium in the blood, which can cause many symptoms, including confusion and sometimes even coma. None of these symptoms is a sure sign of lung cancer. Only a physician can tell whether a patient's symptoms are caused by cancer or by another problem. Consult your physician for a diagnosis. A risk factor is anything that increases a person's chance of getting a disease such as cancer.
Different cancers have different risk factors.
A risk factor is anything that may increase a person's chance of developing a disease. It may be an activity, such as smoking, diet, family history, or many other things. Different diseases, including cancers, have different risk factors. Although these factors can increase a person's risk, they do not necessarily cause the disease. Some people with one or more risk factors never develop the disease, while others develop disease and have no known risk factors.