What causes platelet count of 18000 in a 2 year old?

A platelet count of 18,000 in a 2-year-old child, known as thrombocytopenia, can be caused by various factors, including viral infections (such as dengue or chickenpox), bone marrow disorders (like aplastic anemia), or autoimmune conditions (such as idiopathic thrombocytopenic purpura). It may also result from increased destruction of platelets due to conditions like sepsis or certain medications. A thorough evaluation by a healthcare professional is essential to determine the underlying cause and appropriate management.