Essential Thrombocythaemia (ET)

Essential thrombocythaemia (ET) is a rare blood cancer that causes a high number of blood cells called platelets to form. These cells are involved in blood clotting. It is one of a group of conditions called myeloproliferative neoplasms.

We have information on the diagnosis and treatment of essential thrombocythaemia. And information on organisations that provide support to help you cope.

What is essential thrombocythaemia (ET)?

Essential thrombocythaemia is a rare blood cancer It causes a high number of blood cells called platelets to form.

Tests and treatment for essential thrombocythaemia (ET)

The first test to diagnose essential thrombocythaemia is usually a blood test. This is to check the number of platelets in your blood. In ET there is an abnormally high level of platelets.

Research and coping with essential thrombocythaemia (ET)

Researchers around the world are looking at better ways to treat essential thrombocythaemia and manage treatment side effects.

Last reviewed: 
21 Nov 2023
Next review due: 
21 Nov 2026