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Auspitz's sign
System: Skin & Nail Signs · All skin & nail signs
What it is — and how it is elicited
Scratching off the scale from a psoriasis plaque reveals tiny pinpoint bleeding spots.
What a positive finding suggests
Associated with psoriasis, because the thinned skin over the plaque exposes dilated capillaries.
◈ Behind the name
Heinrich Auspitz (1835–1886), Austrian dermatologist.
Related signs — Skin & Nail Signs
Browse the A section of the A–Z list or return to the Clinical Signs hub.
Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.