Seborrheic Keratosis are considered harmless and never become malignant. This type of growth is superficial and can be removed surgically in the office with good healing outcomes. The only reason for removing a seborrheic keratosis is because the patient wants it off because it is unsightly, or because a garment rubbing it causes discomfort.
Seborrheic Keratosis go through growth cycles beginning as a slightly elevated light brown spot which gradually becomes