| Polycythemia vera | |
|---|---|
| Other names | Polycythaemia vera (PV, PCV), erythremia, primary polycythemia, Vaquez disease, Osler-Vaquez disease, polycythemia rubra vera |
| Blood smear from a patient with polycythemia vera | |
| Medical specialty | Oncology |
Polycythemia vera is an uncommon myeloproliferative neoplasm in which the bone marrow makes too many red blood cells. It may also cause the overproduction of white blood cells and platelets.