Abstract
A 50 years old female suffered from idiopathic autoimmune hemolytic anemia. She was initially treated with prednisolone, and anemia was improved moderately. However, maintenance of Hb value was difficult with the decreased dosage of prednisolone. She was subsequently administered denazol, and anemia was completely improved. It is worth to use danazol for the treatment of the patient of autoimmune hemolytic anemia who is refractory to prednisolone therapy.