Blood Diseases

Blood Disorders

Thrombocythemia

What are myeloproliferative disorders?

Myeloproliferative disorders are diseases in which the bone marrow produces too many of one of the three types of blood cells:

red blood cells, which carry oxygen to all the tissues in the body
white blood cells, which fight infection
platelets, which makes blood clot

What is thrombocythemia?

Thrombocythemia is a myeloproliferative blood disorder. It is characterized by the production of too many platelets in the bone marrow. Too many platelets make normal clotting of blood difficult.

What causes thrombocythemia?

There is no known cause for thrombocythemia.

What are the symptoms of thrombocythemia?

The following are the most common symptoms for thrombocythemia, however, each individual may experience symptoms differently:

increased blood clots in arteries and veins
bleeding
bruising easily
bleeding from the nose, gums, gastrointestinal tract
bloody stools
hemorrhaging after injury or surgery
weakness
enlarged lymph nodes

The symptoms of thrombocythemia may resemble other blood disorders or medical problems. Consult your physician for a diagnosis.

How is thrombocythemia diagnosed?

In addition to a complete medical history and physical examination, diagnostic procedures for thrombocythemia may include additional blood tests to measure blood counts and elevated platelet levels. Bone-marrow biopsy may also be part of the diagnostic protocol.

Treatment for thrombocythemia:

Specific treatment for thrombocythemia will be determined by your physician(s) based on:

your overall health and medical history
extent of the disease
your tolerance for specific medications, procedures, or therapies
expectations for the course of the disease
your opinion or preference

Treatment may include:

chemotherapy
plateletpheresis - a procedure to remove extra platelets from the blood

This page was last updated on: January 29, 2008.

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