This is a companion article to the feature, “Clinical Labs and Diagnostics in Cancer Moonshot Initiatives.” 

Many cancer screening tests are in use, according to the National Cancer Institute.1 Some tests have been shown both to find cancer early and to lower the chance of dying from the disease. Others have been shown to find cancer early but have not been shown to reduce the risk of dying from cancer; however, they may still be offered to people, especially those who are known to be at increased risk of cancer.


  1. Screening tests that have been shown to reduce cancer deaths [online]. Bethesda, Md: National Cancer Institute, 2015. Available at: Accessed April 20, 2016.