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Thrombocytosis (Increase In platelets)
Sign or symptom reference page from the Everyone Healthy database.
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A symptom can have many possible causes. Some symptoms need urgent assessment, especially when they are severe, sudden or rapidly worsening.
Get urgent medical care now if there is any severe, sudden, rapidly worsening or worrying symptom, especially:
- chest pain, pressure or pain spreading to the arm, jaw or back
- trouble breathing, blue lips, severe wheeze or choking
- stroke-like symptoms such as face drooping, arm weakness or speech trouble
- collapse, fainting, seizure, confusion or extreme drowsiness
- severe bleeding, black stools, vomiting blood or major injury
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- severe abdominal pain, severe headache, stiff neck or sudden vision change
- signs of severe dehydration, sepsis, high fever with worsening illness, or symptoms in a baby/young child that concern you
Full information
Thrombocytosis (Increase In platelets)
Thrombocytosis is when the blood contains too many platelets (i.e. over 450 000 platelets per microlitre of blood). The term is used when another disease or condition results in the increased platelet count, rather than it occuring by itself.