Nail Disorders in Dark Skin

  • Moetaz El-Domyati
  • Noha H. Moftah


The nail unit is a skin appendage produced by the skin. Its major function is mechanical protection of the distal digit, also representing a part of the overall cosmetic appearance of the body. Genetic disorders, infections, various dermatoses, senility, tumors, etc. may result in a series of changes of the nail showing alterations of growth, color, thickness, and contour of the nail plate. Thus, examination of the digits and nails often provides diagnostic clues for underlying cutaneous or systemic disease. Alterations and deformities of the nails may be characteristic and helpful for the physician to support his diagnosis; others are not specific but still provide valuable clues for targeted medical investigation. Major differences of nail pathology between Caucasians and dark-skinned ethnic populations are not known or prominent; however, environmental exposure and socioeconomic circumstances in populations living in hot climate zones differ and cause differences in the clinical presentation and medical assistance. In addition, pigment lability in dark skin easily causes diffuse or striate melanonychia [1].


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Moetaz El-Domyati
    • 1
  • Noha H. Moftah
    • 1
  1. 1.Department of Dermatology, STDs and AndrologyMinia UniversityAl-MinyaEgypt

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