A seborrheic keratosis is a common, noncancerous skin growth. It often appears as a raised, wart-like bump on the skin. Seborrheic keratoses are usually brown, black, or flesh-coloured, and they can be smooth or bumpy. They are most common in adults over the age of 30.
These growths are harmless and do not require treatment unless they are causing discomfort or affecting your appearance.