Abstract
Sixty-one patients with Basedow's disease were treated by anti-thyroid therapy in Yamada Red Cross Hospital. Of 44 patients who finished this therapy, complete response was observed in 41 patients. Whereas, relapse was observed in 7 of 9 patients who did not finish this therapy. Forty-one patients who maintained complete response were compared with the relapse group included 17 patients. Surgical operation was selected in 7 patients who relapsed during the anti-thyroid drug therapy. The relapse rate was high in the lower age group, and the group of patients who could not take MMI. Therefore, other therapies should be selected in these groups.