Mark it once you can do it without this page open.

How to do it

  1. Book a regular checkup with a primary care clinician, even if you feel fine.
  2. From 18, have your blood pressure measured at least every three to five years, and every year from 40 or if it runs high.
  3. Ask for the one-time blood tests for hepatitis C and HIV recommended for adults, and about other infection testing if you have new partners.
  4. From your mid-thirties to forties, ask about cholesterol and blood sugar tests, especially if you carry extra weight or it runs in your family.
  5. From 45, start colorectal cancer screening and ask which test suits you.
  6. From 50, ask about lung cancer screening if you have smoked heavily, and from 55 talk through the pros and cons of prostate screening.
  7. Keep up yearly flu shots, a tetanus booster every ten years, dental cleanings and eye exams.
  8. Write down your family history of heart disease, cancer and diabetes and bring it, since it can move these ages earlier.

Stop and call a professional if

  • Always: book with a primary care clinician to set your own schedule; recommendations change and depend on your history.
  • Any symptom such as blood in stool or urine, unexplained weight loss, chest pain or a new lump: see a clinician now, not at the next checkup.
  • This page explains what to watch for; it cannot tell you what is wrong. Only a clinician who examines you can.

Common mistakes

  • Waiting for a symptom before seeing a doctor.
  • Assuming a normal result years ago still stands.
  • Leaving out family history, which changes when screening should start.
  • Treating this list as a diagnosis or a substitute for a visit.

Quick self-check

Three questions. Your last score is kept in this browser.

1. At what age do most adults start colorectal cancer screening?
2. What can move screening earlier?
3. You notice blood in your stool at 30. What do you do?

Teach this to someone

A one-page sheet for showing a friend, a roommate or a kid: what to say, what to show, and one question to check it landed.

Words on this page

Sources

  • National preventive services task force recommendations, current recommendations. Checked September 28, 2026.

Last reviewed . First published .