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Polycythemia Vera

Polycythemia vera is an abnormal increase in blood cells, primarily red blood cells (polycythemia) but also white blood cells and platelets. As numbers of blood cells rise, the blood becomes thicker. This increases the risk for dangerous blood clots (thrombosis).

The cause of polycythemia vera is not known. Most often, this rare disease does not cause medical problems. In some cases, the cell growth increases and can cause leukemia.

Symptoms include a headache, itchiness, and a reddish face.

Treatment may include removal of blood (phlebotomy) on a regular basis, such as weekly, until the blood cell count is normal. Medicine might be used to slow down the production of red blood cells.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Brian Leber, MDCM, FRCPC - Hematology
Current as of March 12, 2014

WebMD Medical Reference from Healthwise

Last Updated: March 12, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.