Definitions for "Early detection"
The disease is found at an early stage before it has grown large or spread to other places in the body.
The detection of disease among people who do not yet have symptoms, usually through a screening test.
In medicine means finding a disease as early as possible, maybe before there are any symptoms.
Any device, marker, or other means developed for the purpose of detecting the presence of a tumor early in its development, when it is theoretically more likely to be curable. Also education and promotion related to the benefits of early detection.