Onychiolitis

Definition: Inflammation of the nail bed (the tissue beneath the nail plate). It may appear as redness, swelling, tenderness, or discharge under the nail.

Causes: Often due to bacterial or fungal infection, trauma, or underlying skin conditions.

Distinction:

• Differs from onychitis (inflammation of the nail plate).
• Differs from paronychia (inflammation of the nail folds around the nail).