https://www.mayoclinic.org/diseases-conditions/essential-thrombocythemia/symptoms-causes/syc-20361064

Oct 7, 2017 ... This disorder can cause your body to make excess blood clots because there ... This condition may cause you to feel fatigued and lightheaded and to ... cause bleeding, especially if your platelet count is extremely high (more ...

https://www.mayoclinic.org/diseases-conditions/thrombocytosis/symptoms-causes/syc-20378315

Sep 13, 2018 ... Thrombocytosis can cause clotting or bleeding problems. ... detect thrombocytosis in a routine blood test result that shows a high platelet level.

https://www.nhlbi.nih.gov/health-topics/thrombocythemia-and-thrombocytosis

Often, a high platelet count doesn't cause signs or symptoms. Rarely, serious or life-threatening symptoms can develop, such as blood clots and bleeding.

https://my.clevelandclinic.org/health/diseases/13350-thrombocytosis

Learn about thrombocytosis and high platelet count from the Cleveland Clinic, ... Too many platelets can lead to certain conditions, including stroke, heart attack, ...

http://www.mpnresearchfoundation.org/Essential-Thrombocythemia

Click for an overview on ET- including causes and prognosis. ... Blood tests can exclude other causes of a high platelet count (“reactive”). ... When symptoms are present, they may include fatigue, or may be related to small or large vessel ...

https://www.lls.org/sites/default/files/file_assets/essentialprimarythrombocythemia.pdf

“thrombocythemia” means an excess of platelets in the ... Constitutional symptoms like fatigue, weakness, ... marrow diseases that can cause high platelets.

https://www.verywellhealth.com/things-that-elevate-your-platelet-count-401336

In both children and adults, infections are the most common cause of an elevated platelet count. This elevation can be extreme, with platelet counts greater than ...

https://rarediseases.org/rare-diseases/essential-thrombocythemia/

Importantly, most people with an elevated platelet count do not have ET. ... Other symptoms in ET include headaches, fatigue, temporary changes in vision, ...

https://www.leukaemia.org.au/disease-information/myeloproliferative-disorders/types-of-mpn/essential-thrombocythaemia/

Platelets are normally needed in the body to control bleeding. However, excess numbers of platelets can lead to abnormal blood clotting which can block the ...

https://www.merckmanuals.com/home/quick-facts-blood-disorders/myeloproliferative-disorders/high-platelet-count

High Platelet Count - Learn about the causes, symptoms, diagnosis & treatment from the Merck ... A high platelet count can cause problems with blood clotting.