Korean J Intern Med.  2020 Sep;35(5):1059-1069. 10.3904/kjim.2020.202.

Clinical spectrum and diagnosis of diabetic neuropathies

  • 1Department of Neurology, Konkuk University Medical Center, Seoul, Korea


Neuropathy is the most prevalent microvascular complication of diabetes mellitus; it encompasses distal symmetric polyneuropathy, autonomic neuropathy, radiculoplexus neuropathy, mononeuropathy, and treatment-induced neuropathy. The prevalence rate of diabetic neuropathy in Korea was reported to be approximately 43%, which is similar to rates in other countries. However, the precise pathogenic mechanism underlying diabetic neuropathy is still obscure, and many clinical trials have failed to develop methods to prevent or reduce the progression of diabetic neuropathy. Nevertheless, early diagnosis and proper management of diabetic neuropathy are essential to alleviate disabling symptoms and to improve the quality of life of patients. This review discusses clinical manifestations and classification of diabetic neuropathies, bedside neurological examination, and electrophysiological tests.


Diabetic neuropathies; Diabetes mellitus; Classification; Diagnosis
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