USPSTF lung cancer screening: what to know

Screening is considered for people with a meaningful smoking history who do not have symptoms suggesting an active problem. The usual scan uses low-dose computed tomography to look for lung changes. A finding may be benign, unclear, or concerning; it does not by itself diagnose lung cancer.

Follow-up can involve another scan, specialist review, or tissue testing. If a diagnosis is made, doctors assess the tumour type and extent, and genomic tumour profiling may help identify treatment options. Screening is separate from symptom evaluation, so a new cough, chest pain, breathlessness, or hoarse voice should be reported directly.

Write down current and past tobacco use, including when you started and stopped, and mention second-hand smoke or relevant exposures. Take previous chest images if available. Ask what scan is planned, how results will be communicated, and what follow-up pathway applies to an abnormal finding.

Screening works best when appointments and follow-up are kept. If you smoke, ask about a cessation plan; stopping can reduce ongoing harm even when screening is also offered.

Do not wait for a screening appointment if you cough blood, develop severe breathlessness, have chest pain, experience confusion, or notice a persistent change such as hoarseness. Seek emergency care for major breathing difficulty or heavy bleeding. Screening is for people without concerning symptoms and is not a substitute for urgent assessment.

Do my smoking history and current health make screening appropriate? What are the possible next steps after the scan? How will an incidental finding be handled? What support is available to stop smoking?