What is lung cancer?
A person with lung cancer has abnormal cells in the lung that multiply out of control. These cells can form tumors and spread to other parts of the body. Adenocarcinoma of the lung is the most common type of lung cancer in women, and in those who do not smoke. Squamous cell carcinoma of the lung is the most common type of lung cancer in men, and in those who smoke. Smoking is the most common cause of lung cancer.

What are the symptoms of lung cancer?
Common symptoms of lung cancer include cough, coughing up blood, and wheezing. Additional symptoms of lung cancer include excessive fatigue, clubbing of the nails, difficulty breathing, and unintentional weight loss.

How does the doctor treat lung cancer?
Treatment for lung cancer varies with the type of cancer. Treatment for lung cancer usually includes a combination of surgery, chemotherapy, and radiation therapy.