Nikolsky’S Sign


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Definition

Nikolsky's sign is a skin finding in which the top layers of the skin slip away from the lower layers when slightly rubbed.


Considerations

Your doctor or nurse can use a pencil eraser to test for Nikolsky's sign. The result may be positive or negative.

A pencil eraser is placed on your skin and  gently twisted back and forth.

If the test result is positive, a blister will form in the area, usually within minutes.

A positive result is usually a sign of a blistering skin condition. People with a positive sign have loose skin that slips free from the underlying layers when rubbed. The area beneath is pink and moist and usually very tender.


Common Causes

  • Autoimmune condition (Pemphigus vulgaris)
  • Bacterial infection ( Scalded skin syndrome)
  • Toxic drug reaction (Toxic epidermal necrolysis)

References

Pasternack MS, Swartz MN. Cellulitis, necrotizing fasciitis, and subcutaneous tissue infections. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 90.

Schumann-Gable N. Dermatology. In: Custer JW, Rau RE, eds. The Harriet Lane Handbook. 18th ed. Philadelphia, Pa: Elsevier Mosby; 2009:chap 8.


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Review Date: 1/26/2012
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

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Last Updated 4/3/2012
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