_1) A vertical splitting or separation of the nail plate in column layers at the distal (free) edge of the nail plate.

_2) It is described as an extreme thickening curvature of the nails, usually it is caused by varying degree of hyperkeratosis.

_3) A condition of the nail plate which separates from the nail bed and curves at the free edge.

_4) Nail condition in which the cuticle splits around.

_5) It separated from the nail-bed and curves at the free edge.

A) Furrows.
B) Eggshell nail.
C) Hyperkeratosis.
D) Shedding.
E) Eneven.
F) Detachment.
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