Thanks for writing to the forum!
Platelet count is often increased in inflammatory conditions like rheumatoid arthritis. It is also increased in some bone marrow disorders like myeloproliferative disorders.
Myeloproliferative disorders include:
• Polycythemia vera -- occurs when the bone marrow produces too many blood cells, especially red blood cells
• Essential thrombocytosis -- occurs when the body produces too many platelet cells, which help blood to clot. Clots can block blood vessels leading to heart attack or stroke.
• Primary or idiopathic myelofibrosis (also known as myelosclerosis) -- occurs when the bone marrow produces too much collagen or fibrous tissue in the bone marrow. This reduces bone marrow's ability to produce blood cells.
• Chronic myelogenous leukemia (CML) -- cancer of the bone marrow that produces abnormal granulocytes (a type of white blood cell) in the bone marrowwww.medhelp.org/tags/show/123403/Chronic-myelogenous-leukemia-CML
Do discuss this with your hematologist.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!