Changes in nails caused by aging

Abstract

Nail aging is a natural process. It causes changes in their characteristics and physiology, making them susceptible to disorders that are more common in individuals over the age of 50. Despite the cause of such diseases not being fully explained, it is believed that they result from a vascular dysfunction of the extremities caused by prolonged sun exposure or even lack of proper foot care. This chapter presents a review of the literature regarding the physiopathology and anatomy of healthy nails and the physiological changes and main pathologies of the nail apparatus caused by aging, such as brittle nails, onychodystrophy, nail disorders, infections, and infestations – paronychia and onychomycosis.