Which preventive checks do I need when I feel well?
Targeted screening can help before symptoms develop, but tests and intervals depend on age, family history, risk factors and previous results. Prevention does not mean every blood test annually or whole-body imaging. Each screening test has potential benefits, limitations and harms.
Details
Start with your risk profile
Discuss blood pressure, tobacco use, diabetes, lipids, weight and early disease in close relatives. Cancer screening depends on age, organs present, individual risk and applicable guidance. Review vaccinations and health habits as well.
Why not test everything?
Screening can produce false alarms, further procedures or detection of conditions that would never cause harm. Tumour markers are not a reliable all-purpose cancer screen for healthy people. Whole-body CT without a specific indication has not shown benefit as general screening.
Agree on the next step
Ask what an abnormal result would change and when to repeat the test. A normal screen does not dismiss new symptoms: unexplained bleeding, a lump or weight loss needs diagnostic assessment without waiting for a routine screening appointment.
Related reading: When do I need a triglyceride test, and what does a high result mean?.