Screening refers to a test or exam done to find a condition before symptoms begin. Screening tests may help find diseases or conditions early, when they are easier to treat. Some conditions that doctors commonly screen for include
Which tests you need depends on your age, your sex, your family history and whether you have risk factors for certain diseases. For example, being overweight may increase your risk of developing diabetes.
References and abstracts from MEDLINE/PubMed (National Library of Medicine)