An increase in the number of platelets in someone’s blood.
Increase in the number of platelets in the blood, causing greater tendency for clots to form; it is associated with many chronic infections, neoplasms, and other diseases.
Mildly increased number of platelets in circulation.
An increase in platelets, the blood elements that have a key role in clotting. In most cases, thrombocytosis is a physiological reaction to another condition, such as cancer, surgery (typically splenectomy), trauma or injury, severe infection, inflammatory disorders such as rheumatoid arthritis, iron-deficiency anemia, or recovery from thrombocytopenia (an abnormally low number of platelets). This kind of reactive thrombocytosis is usually temporary, and the person is free of symptoms. In older patients, however, it may lead to blood clots that precipitate a heart attack or stroke.
An increase in the number of platelets in the blood. It may occur in a variety of diseases, including chronic infections, cancers, and certain blood diseases and is likely to cause an increased tendency to form blood clots within vessels (thrombosis).
A vascular disorder distinguished by elevated levels of platelets in the bloodstream.