In this condition, faulty stem cells in the bone marrow make too many platelets. What causes this to happen usually isn't known.
1 Nov 2012 ... A high platelet count can occur for many reasons, but there are two basic ... A high platelet count is less common in adults who have infections.
High platelet counts can occur in patients with polycythemia vera (high red ... If the cause for the high platelet count remains unclear, bone marrow biopsy is ...