Blood disordersDetected by blood test
Red blood cell excess (polycythemia / polycythemia vera)
An excess of red blood cells that thickens the blood and raises clotting risk; polycythemia vera is the bone marrow disorder driving it. Blood testing detects the high hematocrit and JAK2 mutation.
Early detection matters
Our comprehensive check-up screens for red blood cell excess (polycythemia / polycythemia vera) and hundreds of other conditions.