Diabetes-induced buzzing in the ears is a symptom of tinnitus, and the corresponding symptoms may be related to peripheral nerve and blood vessel damage, which may be recovered through standardized treatment. Diabetes itself does not directly cause tinnitus, but poorly controlled blood sugar can cause blood vessel damage, affecting the blood supply to the inner ear, and may also affect the peripheral nerves, a combination of factors that lead to tinnitus. Through regular use of medication (metformin, etc.) to control blood glucose, the application of anticoagulant drugs (aspirin, etc.), nutritive nerve drugs (methylcobalamin, etc.), to regulate the nerves, blood vessels, part of the tinnitus may be cured. Diabetes mellitus with severe tinnitus has not been relieved, need to consult a doctor in a timely manner to investigate other neurological and inner ear pathologies, under the guidance of clinicians for standardized treatment.