Reports of unusual blood clots in the setting of low platelets associated with COVID-19 vaccines have brought attention to these tiny cell fragments tasked with preventing humans from fatally bleeding ...

Essential thrombocythemia (ET) is a type of myeloproliferative neoplasm (MPN), a rare blood disorder that causes an increase in the number of blood cells. Some symptoms include headaches, dizziness, ...

A high platelet count, or thrombocytosis, is diagnosed when platelet levels are greater than 450,000 platelets per microliter of blood. A high platelet count can lead to symptoms that range from ...