CONCLUSION
Reactive thrombocytosis should always be considered in patients present with severe iron deficiency anemia and infection.
This case showed that in the absence of iron supplements therapy, The reactive thrombocytosis state for this patient improved quickly by only treating the infection and the anemia.
The hemoglobin level and platelet count should be followed closely in patients with reactive thrombocytosis to prevent fatal complications of anemia. Iron studies and bone marrow biopsy are mandatory to rule out any bone marrow malignancies and to reach the definitive diagnosis.