Doctors gather comprehensive data when carrying out a diagnosis for lung cancer. During such lung cancer diagnosis sessions, doctors collect information on a person’s medical history, lifestyle, occupation, and unhealthy habits such as smoking, drugs, etc. They will also carry out a thorough physical examination and recommend specific medical tests, if warranted. Additionally, doctors will also ask whether the person being diagnosed for lung cancer has been/is exposed to occupational-specific, hazardous material, harmful gases, radiation etc., as well as whether his or her family has a history of lung cancer.