By Dr Sumit Toor
Understanding Raised Scars: Keloids vs. Hypertrophic Scars
When the skin heals after an injury, the body produces collagen to mend the wound. While this process is essential for recovery, sometimes the body produces an excess of collagen, resulting in raised, prominent scars. Two of the most common types of raised scars are hypertrophic scars and keloids. While they may look similar at first glance, they behave very differently and require distinct approaches to management.
What is a Hypertrophic Scar?
A hypertrophic scar is a thick, raised scar that develops directly at the site of a skin injury. These scars are characterized by their tendency to remain within the boundaries of the original wound. They often appear red or pink and may feel firm to the touch. Hypertrophic scars typically develop within a few weeks of the injury and, in many cases, may naturally flatten or fade over several months or years.
What is a Keloid?
Keloids are more aggressive than hypertrophic scars. A keloid is a type of overgrown scar tissue that spreads beyond the original boundaries of the wound, invading the surrounding healthy skin. They can appear months after the initial injury and rarely disappear on their own. Keloids often have a shiny, rubbery appearance and can range in color from flesh-toned to dark red or purple. They are frequently associated with itching, tenderness, or even pain.
Key Differences at a Glance
- Growth Pattern: Hypertrophic scars stay within the wound site; keloids grow beyond the original injury.
- Timing: Hypertrophic scars appear early (weeks); keloids can appear much later (months).
- Regression: Hypertrophic scars may improve over time; keloids rarely regress without medical intervention.
- Location: While both can appear anywhere, keloids are particularly common on the earlobes, chest, shoulders, and back.
Causes and Diagnosis
Both types of scars result from an abnormal healing response to skin trauma, such as surgical incisions, burns, acne, piercings, or even minor scratches. Genetics play a significant role, particularly with keloids, which are more common in individuals with darker skin tones. Diagnosis is typically performed through a clinical examination by a specialist. At Anant Aesthetics Clinic in Adampur, Dr. Sumit Toor evaluates the scar’s texture, growth pattern, and history to determine the most effective course of action.
Treatment Options
Managing raised scars requires a personalized approach. Common treatments include:
- Corticosteroid Injections: These help flatten the scar and reduce inflammation or itching.
- Laser Therapy: Vascular lasers can reduce redness, while resurfacing lasers can improve texture.
- Cryotherapy: Freezing the scar tissue with liquid nitrogen to reduce its size.
- Silicone Sheets or Gels: A non-invasive way to hydrate the scar and apply pressure, helping it to flatten over time.
- Surgical Excision: Removing the scar surgically. For keloids, this is often combined with other treatments to prevent them from returning.
Recurrence Risk and Prevention
The risk of recurrence is significantly higher for keloids than for hypertrophic scars. If you are prone to keloids, prevention is the best strategy. This includes avoiding unnecessary piercings or elective surgeries. If a wound does occur, prompt and proper wound care—often involving pressure therapy or silicone dressings—is vital. For expert guidance on scar management and prevention, you can visit anantaesthetics.com to learn more about the specialized services offered by Dr. Sumit Toor at Anant Aesthetics Clinic.