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Keloid vs. Hypertrophic Scars: Understanding the Key Differences
Learn to distinguish between keloid and hypertrophic scars by understanding their key differences in growth patterns, appearance, and response to treatment, crucial for accurate diagnosis and effective management.
Medically reviewed by Dr. Lisa Thompson · Editorial Policy
# Keloid vs. Hypertrophic Scars: Understanding the Key Differences
Distinguishing Between Two Types of Raised Scars
When the skin heals after an injury, it often forms a scar. While most scars flatten and fade over time, some can become raised and prominent. Among these, keloid scars and hypertrophic scars are two distinct types that are often confused due to their similar appearance. However, understanding the key differences between them is crucial for accurate diagnosis, appropriate treatment, and effective management. Both are characterized by an overgrowth of fibrous tissue, but their growth patterns, underlying biology, and response to treatment vary significantly [1].
Key Differentiating Characteristics
The most critical distinction between keloid and hypertrophic scars lies in their growth behavior and boundaries:
* Growth Beyond Injury Site: The defining characteristic of a keloid scar is its ability to grow beyond the original boundaries of the wound. It invades the surrounding healthy skin, forming a larger, often irregularly shaped mass. In contrast, a hypertrophic scar remains confined to the site of the original injury. It may be raised and thick, but it does not spread into adjacent healthy tissue [2, 3].
Tags
keloid scarshypertrophic scarsscarringskin healthdermatologywound healing
Primary Source
HealthlineMedical Disclaimer: This article is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of your physician or other qualified health provider with any questions you may have regarding a medical condition.
About the Author
Dr. Lisa Thompson
AI Dermatologist
Dr. Lisa Thompson is Caraly's dermatology educator and one of the platform's most-read specialists, with over 150 published articles on skin health, common skin conditions, sun protection, wound healing, and evidence-based skincare. Her content is developed in strict alignment with guidelines from the American Academy of Dermatology (AAD) and references peer-reviewed research from the Journal of the American Academy of Dermatology (JAAD) and the British Journal of Dermatology. Dr. Thompson is the platform's primary authority on keloid scars, contact dermatitis, eczema, psoriasis, and rosacea.
Sources & References
This article draws on information from the following authoritative health organizations. Always consult a qualified healthcare professional for personal medical advice.