What are screening tests?
Screening tests check to see if you have a disease or condition before you have any symptoms of it. The idea is that a problem is picked up before it develops, or in the very early stages. In this way, certain diseases can be prevented before they ever occur, or treated before they start causing any problems.
Not all conditions have suitable tests which allow them to be detected early, and not all conditions can be treated successfully even if they are picked up. So only certain conditions are part of our national screening programmes
Here is a summary of the screening programmes taken from the NHS Website: