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Seborrheic keratoses: Signs and symptoms


What are the signs of seborrheic keratoses?

Seborrheic keratoses tend to:

  • Start as small, rough bumps, then slowly thicken and develop a warty surface

  • Have a waxy, stuck-on-the-skin look

  • Be brown, though they range in color from white to black

  • Range in size from a fraction of an inch to larger than a half-dollar

  • Form on the chest, back, stomach, scalp, face, neck, or other parts of the body (but not on the palms and soles)

  • Cause no pain, though some itch

Seborrheic keratoses

Seborrheic keratoses can look like stucco splattered on the skin.

Seborrheic keratoses

Like his father, this man developed many of these growths on his skin.


Images
Images used with permission of the American Academy of Dermatology National Library of Dermatologic Teaching Slides.

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