Seborrheic Keratosis is a minor skin irregularity of unknown origin. It commonly appears after age 40. These irregularities appear as wart-like growths in a variety of colors. They may appear in large numbers on the surface of the body. They are usually painless and benign but may become irritated and itchy. They may be slightly elevated or flat. A waxy or wart-like appearance is noted with a pasted-on appearance. They may be yellow, brown, black or flesh-colored.