What is seborrheic keratosis?
A person with seborrheic keratosis has non-cancerous, rough, brown, raised bumps on the skin. They occur most commonly in the elderly, and occur most commonly on the trunk, followed by the face and hands. The cause of seborrheic keratosis is unknown. It is the most common non-cancerous skin tumor in the elderly.

What are the symptoms of seborrheic keratosis?
Symptoms of seborrheic keratosis include tan, brown, or black skin lesions on the surface of the skin. The skin lesions are round, waxy or greasy, and appear stuck on the skin surface.

How does the doctor treat seborrheic keratosis?
Treatment for seborrheic keratosis includes cryotherapy, electrocautery, or minor surgery to remove the skin lesions.