Free-floating DNA carrying cancerous mutations was detected in blood three years before any other signs of cancer appeared.

This month, the FDA gave “Breakthrough Device Designation” to a new blood test by Guardian Health for detection of eight ...

New DNA test can detect 18 different types of early stage cancers, scientists say. Test has high sensitivity in detecting early-stage tumours in patients showing no symptoms, scientists say.

The process of DNA fingerprinting was developed by Alec Jeffreys in 1984, and it first became available for paternity testing in 1988. Before this sort of DNA analysis was available, blood types ...

Cell-free fetal DNA testing: Some of your baby’s DNA winds up in your blood. After 10 weeks, your doctor takes a sample from you, and a lab tests the baby’s DNA in it for signs of: Down syndrome ...

Cell-free DNA testing uses a small amount of a person's blood and tests it for a large number of cancers. A positive test could indicate that the person has a certain type of cancer in theory ...