Onychomadesis

Onychomadesis is a proximal nail plate separation from the nail matrix and nail bed. There are a spectrum of conditions and diseases which may cause the condition. From severe infections and matrix traumatisation, to systemic diseases, drugs and chronic skin pathologies and bruised nails.

The condition begins when the matrix stops producing nail plate cells. In most adult cases it happens due to the sudden loss of blood supply to the matrix. For example, with a bruised nail, severe nail infection or an e-file manicure when the matrix area is injured. The matrix drops the nail which sounds painful but in most cases of onychomadesis this is painless.