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Overview of Nail Disorders

By

Chris G. Adigun

, MD, Dermatology & Laser Center of Chapel Hill

Last full review/revision Aug 2019| Content last modified Aug 2019
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Topic Resources

Common warts Warts Warts are common, benign, epidermal lesions caused by human papillomavirus infection. They can appear anywhere on the body in a variety of morphologies. Diagnosis is by examination. Warts are... read more Warts (verrucae vulgaris) result from human papillomavirus infection and frequently infect the proximal nail fold and sometimes the subungual area. Onychophagia (nail-biting) can help spread this infection. Warts involving these areas are especially difficult to treat.

Toenails require special attention in the elderly and in people with diabetes or peripheral vascular disease; a podiatrist can help avoid local breakdown and secondary infections by assisting in routine nail trimming.

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Lichen Planus
A 65-year-old man comes to the office because he has had an itchy rash for the past 6 weeks that is purple in color on the flexor aspect of each wrist. On physical examination, the lesions are flat and smooth. Biopsy is performed, and lichen planus is confirmed. Which of the following laboratory studies should be done? 
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