Encyclopedia Home / S / Seborrheic keratosis

Seborrheic keratosis

  • Definition

    Seborrheic keratosis is noncancerous (benign) wart-like growths on the surface of the skin.


    Alternative Names

    Benign skin tumors - keratosis; Keratosis - seborrheic; Senile keratosis


    Causes, incidence, and risk factors

    Seborrheic keratosis is a benign form of skin tumor. The cause is unknown.

    The condition commonly appears after age 40 and tends to run in families.