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Pigmented Ethnic Skin and Imported Dermatoses pp 369–384Cite as

Nail Disorders in Dark Skin

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Abstract

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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Author information

Authors and Affiliations

  1. Department of Dermatology, STDs and Andrology, Minia University, Al-Minya, Egypt

    Moetaz El-Domyati & Noha H. Moftah

Authors
  1. Moetaz El-Domyati
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  2. Noha H. Moftah
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Editor information

Editors and Affiliations

  1. The Free University of Berlin, Medical School Charité, Berlin, Germany

    Constantin E. Orfanos

  2. Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Saxony-Anhalt, Germany

    Christos C. Zouboulis

  3. Department of Dermatology and Venereology, HELIOS Klinikum Krefeld, Krefeld, Nordrhein-Westfalen, Germany

    Chalid Assaf

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El-Domyati, M., Moftah, N.H. (2018). Nail Disorders in Dark Skin. In: Orfanos, C., Zouboulis, C., Assaf, C. (eds) Pigmented Ethnic Skin and Imported Dermatoses. Springer, Cham. https://doi.org/10.1007/978-3-319-69422-1_34

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  • DOI: https://doi.org/10.1007/978-3-319-69422-1_34

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-69421-4

  • Online ISBN: 978-3-319-69422-1

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