Nikolsky’s sign
Definition
Nikolsky's sign is skin condition in which the top layers of the skin slip away from the lower layers when slightly rubbed.
Considerations
Nikolsky's sign is either positive or negative. A positive result may be present in several different medical conditions. Persons with a positive sign have loose skin that slips free from the underlying layers when rubbed. The area beneath is pink and moist and may be very tender.
Typically, your health care provider will test for this sign simply by twisting a pencil eraser against your skin. If positive, a blister will form in the area, usually within minutes.
Causes
- Allergic reaction (Toxic epidermal necrolysis)
- Autoimmune condition (Pemphigus vulgaris)
- Bacterial infection ( Scalded skin syndrome)
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