Screening test

A screening test looks for early signs of a condition in people who do not have symptoms of that condition. It differs from a diagnostic test used to investigate an existing concern. Australian screening programmes target defined groups because the potential benefits and harms depend on age, risk and the condition being screened for.

Does a screening result give a diagnosis?

Not always. A positive or abnormal result may mean further testing is needed, while a negative result does not guarantee that disease is absent or will never develop. Screening can produce false positives, false negatives and other unintended consequences.

Ask what the test can detect, what it cannot detect and what happens after each possible result. Informed participation means understanding both the purpose and the limits rather than assuming more tests are always better.

For the Australian guidance behind this explanation, see Australian Government Department of Health, Disability and Ageing: Population-based health screening.

What if I already have symptoms?

Tell a clinician instead of waiting for the next routine screening invitation. Symptoms may need a different investigation or urgency. A recent normal screening result should not be used to dismiss new bleeding, a lump or another concerning change.

Eligibility for a national programme is not identical to individual clinical need. A person outside the routine age group may still need assessment because of symptoms or risk, while a screening test may be inappropriate in some circumstances. A doctor can explain the distinction.

How do I keep track?

Use official programme information and your clinical record to check what is due. Bring previous results and family history to a preventive-care discussion. Confirm who will receive results and arrange any required follow-up.

See Doccio's tests information for suitable clinical discussions. This glossary does not promise access to every screening programme through telehealth. A doctor decides which assessment is appropriate, and some screening requires an in-person service or a programme-specific process. Avoid using a commercial test bundle as a substitute for an individual preventive plan.

Where to go next

Read tests to understand the relevant service. A doctor decides whether a consultation, examination, referral or another pathway is appropriate for your situation.