
Health
Polycythemia vera – Symptoms and risk factors
Polycythemia vera, or PV, is a form of blood cancer that starts in the bone marrow, where new blood cells form and grow. PV causes the bone marrow to generate too many new blood cells, increasing the risk of cardiovascular conditions. It develops gradually over many years and typically affects older men, who are usually diagnosed in their 60s or later. Understanding the causes and warning signs of PV can help people take the necessary steps to manage the condition. Causes The bone marrow is responsible for producing three types of blood cells: red blood cells, platelets, and white blood cells. The red cells carry oxygen, the white cells fight infections, and the platelets are essential for blood clotting, which helps stop bleeding. Most people with PV have too many red blood cells, but they might also have excess white blood cells and platelets. The condition results from a genetic change that develops during a person’s life, not one they are born with. However, the risk of developing it may be higher in certain families due to inherited factors. Symptoms During the early stages, PV can be a silent disease, since people generally do not experience symptoms. A high red blood cell count is often found during a routine checkup.
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