Seborrheic keratoses: Signs and symptoms

Seborrheic keratoses: Signs and symptoms

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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 — some itch.
                seborrheic keratoses can be white Seborrheic keratoses: Some seborrheic keratoses look like stucco splattered on the skin.
                seborrheic keratoses can look like molesSeborrheic keratoses: Like his father, this man saw many of these growths appear on his skin.

Learn more about seborrheic keratoses:

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

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