Hi,

You asked what you or your doctor needs to know regarding being at a higher risk of bleeding with ET.

Patients with ET are at increased risk of bleeding, especially when platelet counts are extremely high (over 1- 1.5 million). This is because the excessive platelets can lead to acquired von Willebrand disease, where your platelets consume and degrade von Willebrand factor, a protein essential for blood clotting. Other factors that may increase your bleeding risk include a history of bleeding episodes or a history of significant bleeding.

This assumes you're not taking real blood thinners for another condition, such as A-Fib. Also, having anemia can increase your risk of bleeding. Anemia, particularly iron deficiency anemia, can lead to more frequent and heavier bleeding, especially in women, and increase the risk of bleeding events overall.

But your doctor monitors all these things. That's why it is vital to get regular blood tests (CBC with diff and CMP also to check more things). If you have a wallet card that says you have ET and that you take HU (or whatever drug you have for the ET), and also if you are on blood thinners or chronic anemia.

The first thing ER docs will check if you are unconscious are your blood tests, or if you are conscious you tell them to look at your Medical ID card (which can be made up by several companies on Amazon and they are laminated and very nice to have, since you can put your medical dianoses on them and also your doctors names and phone numbers! For $15. or so, I think they are excellent protection and "essential" for anyone with ET or any other MPN. I hope this helps you.