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en.wikipedia.org

Scar - Wikipedia

A scar (or scar tissue) is an area of fibrous tissue that replaces normal skin following an injury. Scars result from the biological process of wound repair in the skin, as well as in other organs and tissues of the body.

www.verywellhealth.com

Scars: How They Form, Causes, Treatment, and More

Jan 19, 2026 · Scars are made of fibrous tissue that forms during the wound-healing process and leaves a mark on the skin after an injury has healed. 1 As part of the body's natural repair mechanisms, collagen-based s...

my.clevelandclinic.org

Scars: Treatment and Cause - Cleveland Clinic

Overview What are scars? Scars form as part of the healing process after your skin has been cut or damaged. The skin repairs itself by growing new tissue to pull together the wound and fill in any gaps caused by the i...

biologyinsights.com

Is Scar Tissue Bad? Why It Forms and When It’s a Concern

Aug 21, 2025 · Scar tissue represents the body’s adaptive response to repair damaged skin or other tissues. When an injury occurs that extends beyond the superficial layers, the body initiates a complex healing cascad...

www.houstonmethodist.org

What To Do When Post-Surgical Scar Tissue Is Affecting You

Jan 26, 2024 · What is scartissue? Scartissue is essentially collagen, a protein that serves as a building block to support many tissues and structures throughout the body — bones, cartilage, tendons, ligaments and sk...

www.hopkinsmedicine.org

Scars - Johns Hopkins Medicine

What is a scar? A scar is the body's natural way of healing and replacing lost or damaged skin. A scar is usually composed of fibrous tissue. Scars may be formed for many different reasons, including as a result of in...