Hi, thanks for sharing your health concerns with HCM! I think it is essential thrombocytosis that needs some genetic/molecular mutation test for confirmation and there is no reasonable condition for high platelet count in this condition! There are medicines/injections and the last resort could be some platelet removal! However, I would like to know her treatment history, any previous disease, bone marrow/other test reports and present/past platelet counts.... Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing her good health.