Onychoschizia means plate-like splitting of the free edge of the nail. This image displays the plate-like splitting of the nail in onychoschizia. Onychoschizia is most often caused by repeated wetting and drying of the nails. This image displays onychoschizia. Onychoschizia means splitting of the fingernails, as displayed in this image. In onychoschizia, the nail plate peels off in layers, as displayed in the image.
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Nail Splitting (Onychoschizia)  Information for adults

Picture of Nail Splitting (Onychoschizia): Onychoschizia means plate-like splitting of the free edge of the nail. Divider line
Onychoschizia means plate-like splitting of the free edge of the nail.
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Signs and Symptoms
  • Nail splitting affects the fingernails and the toenails. The condition may appear as a single horizontal split between layers of the nail plate at the growing end or as multiple splits and loosening of the growing edge of the nail plate.
  • Horizontal nail splitting may occur along with onychorrhexis, with longitudinal ridging or splitting as well.
  • Horizontal splits at the origin of the nail plate may be seen in people with psoriasis or lichen planus or in people who use oral medications made from vitamin A.
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Last Modified: 22 Dec 2008
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