What are multi-cancer detection (MCD) tests, and should you get one?
Last updated June 23, 2026
Multi-cancer detection tests (MCD), also known as multi-cancer early detection (MCED) tests, offer the potential to detect a range of cancers through a simple blood test.
MCD tests, a type of liquid biopsy, aim to catch early-stage cancer cells long before symptoms appear. By using machine-learning algorithms, these tests can identify the likely origin of tumors based on DNA and protein profiles...