Abstract
Bilateral sudden deafness in a 69-year-old woman with diabetes mellitus is reported. It occurred on bilateral ears at the same time. She had been suffered from diabetes mellitus for 16 years. Because her treatment was not satisfactory, her blood sugar was 404 (mg/dl) when she consulted authors at first. She also had diabetic retinopathy whose grade was Scott V. It was thought that the microangiopathy occurred in the inner ears because changes in the blood vessel of the inner ear in diabetes mellitus have a relationship to retinal one. This microangiopathy seemed to have caused sudden deafness in this case. We reviewed literature for bilateal sudden deafness caused by diabetes mellitus and other diseases.
