What are the characteristics of keloids?

• A. Flat and discolored areas of skin
• B. Raised, thickened areas of scar tissue
• C. Painless lesions on the skin
• D. Dark spots that fade over time

Answer: (B)

Keloids are characterized by raised, thickened areas of scar tissue that form at the site of an injury or incision. They occur due to an overproduction of collagen during the healing process, which leads to an abnormal growth of scar tissue extending beyond the original wound. This growth is typically firm and can be itchy or tender, distinguishing keloids from other types of skin lesions that may be flat or discolored. The raised nature and thickness of keloids are pivotal in their identification, as they often protrude from the skin surface and may not diminish over time, unlike other types of scars or skin changes that can flatten or fade.