What is the term used for the separation of a nail plate from its nail bed?

The separation of the nail plate from its nail bed is referred to as onycholysis. This condition can occur due to various factors, including trauma, infection, or underlying medical conditions. When onycholysis occurs, the nail may appear discolored or lifted, as it detaches from the skin underneath. It is important to recognize and address the underlying causes of onycholysis, as proper treatment can often restore the nail's health and reintegration with the nail bed.

Onychomycosis, the first option, refers to a fungal infection affecting the nails, which is distinctly different from onycholysis. Athlete's foot is a fungal infection of the skin on the feet and does not involve the nail itself. Paronychia refers to an infection of the skin surrounding the nails, which may cause redness, swelling, and pain but does not specifically describe the detachment of the nail from the nail bed. This helps clarify the significance of onycholysis as the correct term associated with the nail plate separation.