Hypertrophic scars are raised, thickened areas of skin that develop after an injury or surgery. They occur when the body produces too much collagen during the healing process, leading to an overgrowth of tissue. These scars are often red or dark in color and can feel itchy or uncomfortable. Unlike keloid scars, hypertrophic scars typically remain within the boundaries of the original wound. They may improve over time but can take months or even years to flatten and fade. Treatment options include silicone gel sheets, corticosteroid injections, and laser therapy to help reduce their appearance.