What is thrombocytosis?
Platelets are blood particles produced in the bone marrow that play an important role in the process of forming blood clots. Thrombocytosis 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.
Less commonly, when thrombocytosis has no apparent underlying condition as a cause, the disorder is called primary thrombocythemia or essential thrombocythemia. This is a blood and bone marrow disease.
Symptoms
People with thrombocytosis often don't have signs or symptoms. Signs and symptoms of reactive thrombocytosis, if they do occur, relate to the underlying condition.
People with essential thrombocythemia might have signs and symptoms related to blood clots and bleeding, including:
- Headache
- Dizziness or lightheadedness
- Chest pain
- Numbness or tingling of the hands and feet
When to see a doctor
Because thrombocytosis isn't likely to cause symptoms, you probably won't know you have it unless a routine blood test reveals a higher than normal number of platelets. Your doctor might detect thrombocytosis in a routine blood test result that shows a high platelet level.
Source:
https://www.mayoclinic.org/diseases-conditions/thrombocytosis/symptoms-causes/syc-
20378315
