They are not cancerous but some patients have them removed for cosmetic reasons. When the scar from a deep cut or wound extends and spreads beyond the size of the original wound, it is known as a keloid. Keloids may vary in size, shape and location and are found more often in black skin. Common on the ear lobes, neck, hands or forearms, keloids usually result from an injury or infection. Occasionally they occur spontaneously, especially on the mid-chest area.
Some people develop keloids after surgery.
Keloids may appear on the ear lobes after ear piercing. Depending on the location of the scar, treatment may consist of cortisone injections, pressure, surgery, laser treatment or radiation therapy. Unfortunately, keloids tend to return, even with treatment. Some black men develop keloid-like scars on the back of their necks. The area may itch and sometimes becomes infected.