Wiscott-Aldrich syndrome (WAS) is an X-linked recessive disorder affecting males and is characterized by recurrent systemic bacterial and viral infections, purpura due to thrombocytopenia, and an atopic dermatitis-like skin eruption. WAS usually manifests itself early during the first few weeks or months of life with bleeding. A case of WAS with the classical symptoms(eczema, thrombocytopenia and susceptibility to infections) is described in a 12-year-old Korean boy. He had a relatively good outcome.