What should i do for a blood platelet count of 39?

See a Hematologist : Low platelet counts (thrombocytopenia) may be due to multiple different problems including a rxn to medication or cancer, however it is most commonly without an identifiable cause (idiopathic or itp). Treatment is only necessary if counts get very low (putting one at risk for spontaneous bleeding) or before surgery. Treatment varies with the cause; it sometimes resolves on its own.