Diabetic polyneuropathy (DPN) causes neuropathic pain with reduced
quality of life as well as diabetic foot ulceration which sometimes
resulted in amputation. Early detection and improved knowledge of
pathogenic pathways are important to prevent and to manage DPN. The
screening methods and
several tests to diagnose DPN- quantitative sensory testing, skin
biopsy, corneal confocal microscopy, etc.- will be described.

KEYWORDS : Diabetic neuropathies; Skin biopsy; Quantitative sensory testing; Confocal microscopy