Onychomycosis: a significant medical disorder.

A number of factors have contributed to the growing incidence of fungal nail infections, including an aging population, an expanding number of immunocompromised patients, and increasing participation in fitness-related activities. Although onychomycosis and other nail diseases can adversely affect the appearance of the nail unit, the impact of such nail disfigurement extends well beyond the aesthetic realm. In fact, many patients with fungal nail infections experience serious physical, psychosocial, and occupational effects as a result of this disease. In addition, onychomycosis is a serious health burden, particularly in older persons, and has a major economic impact on the healthcare system.