The Galleri test uses a simple blood draw to check for cancer cells in your bloodstream.
All cells, healthy and cancer cells, contain DNA. The DNA from cancer cells is different from the DNA of healthy cells. As cells grow through their lifecycle and die, DNA is released into the bloodstream. The Galleri test can tell the difference between DNA from cancer cells and DNA from healthy cells.
If a cancer signal is found, the results point to where in the body the cancer is coming from to help us guide your next steps.