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Thrombocytosis (throm-boe-sie-TOE-sis) is a disorder in which your body produces too many platelets. It's called reactive thrombocytosis or secondary thrombocytosis when the cause is an underlying condition, such as an infection.
Thrombocytosis (pronounced “throm-boe-sie-TOE-sis”) is having too many platelets in your blood. Platelets are blood cells that stop bleeding by sticking together to form a clot. Too many platelets, however, can cause your blood to become too sticky.
Thrombocytosis, or a high platelet count, is diagnosed when platelet levels are greater than 450,000 platelets per microliter of blood. It's not always obvious when to worry about a high platelet count. Many times, a high platelet count isn't serious and may not cause symptoms.
Thrombocythemia is a disease that causes your body to make too many platelets in the bone marrow. Too many platelets can cause blood clots or bleeding. Symptoms include blood clots and signs of bleeding, such as bruises, bloody stools, and weakness.
When there are too many platelets in the blood, this is referred to as thrombocytosis. A normal platelet count is 150,000 to 450,000 platelets per microliter (mcL) of blood. A diagnosis of thrombocytosis is made when platelets are higher than 450,000 per mcL.
A blood test called a complete blood count (CBC) can show if your platelet count is too high. You may also need blood tests to check for: High or low iron levels. Markers of inflammation. Undiagnosed cancer. Gene mutations. You might also need a procedure that uses a needle to remove a small sample of your bone marrow for testing.
Thrombocythemia occurs when faulty cells in your bone marrow make too many platelets. Your platelets also do not work properly. Bone marrow is the sponge-like tissue inside the bones. It contains stem cells that develop into platelets and other blood cells.
View More. Platelet disorders happen when: Your body makes too many platelets. Your body makes too few platelets. Your platelets are used up or destroyed faster than they can be replaced. You have enough platelets but they aren’t working properly. Your body needs platelets to form blood clots.
Having more than 450,000 platelets is a condition called thrombocytosis; having less than 150,000 is known as thrombocytopenia. You get your platelet number from a routine blood test called a complete blood count (CBC). What it means to have too many platelets.
A reaction to a disease. Sometimes blood-forming cells just make too many platelets. This is usually because there's a problem with one of the genes that control the making of platelets. This problem usually happens after about age 50, but sometimes it happens to young women.