Hypertrophic Scar

ICD-10: L90.5
Hypertrophic Scar - Not Specified

Location: Not Specified

Severity: MILD

Skin Type 2
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Okay, let's talk about hypertrophic scars. I know that dealing with any kind of scar can be concerning, and it's completely natural to want to understand what's happening with your skin. My goal here is to give you clear, helpful information so you feel more informed and empowered.

Hypertrophic Scar

1. Overview

A hypertrophic scar is a thickened, raised scar that develops where your skin has been injured. It happens when your body produces too much collagen (a protein that helps skin heal) during the healing process, but unlike some other types of scars, it stays within the boundaries of the original wound.

These scars can develop after any type of skin injury, like a cut, burn, surgery, or even severe acne. Anyone can get a hypertrophic scar, regardless of age, but they might be more common in areas of skin under tension or after injuries that took a long time to heal. No, hypertrophic scars are not contagious – you can't catch them from someone else. While they are usually not medically dangerous, they can sometimes be itchy or uncomfortable, and their appearance can understandably cause distress or self-consciousness.

2. Symptoms

You might notice the following if you have a hypertrophic scar:

  • A raised, firm area of skin that is confined to the site of an original injury.
  • The scar may appear pink, red, or sometimes purplish at first, and can gradually fade over many months or years.
  • Itching (this is a very common sensation).
  • Tenderness or mild pain when touched or if the scar is in an area that moves a lot.
  • The scar might feel tight or cause a pulling sensation, especially if it's over a joint.
  • It usually develops within weeks or a couple of months after the initial skin injury.
  • The scar may become less raised and softer over time, but this can take a long while.

3. Diagnosis

Diagnosing a hypertrophic scar is usually straightforward for a healthcare professional. They will typically:

  • Look closely at the scar's appearance, noting its size, shape, color, and texture.
  • Ask you about the history of the injury that caused the scar – when it happened and how it healed.
  • In most cases, no special tests are needed. The visual examination and your medical history are often enough.

Management & Treatment

Dealing with a hypertrophic scar can be a journey, but the goal is to soften, flatten, and reduce any discomfort or discoloration, helping you feel more comfortable in your own skin. It's encouraging to know that many hypertrophic scars can improve and flatten on their own, though this might take a year or more. If a scar is causing you distress or limiting your movement, there are several effective treatments available.

Home Care and Over-the-Counter (OTC) Options

For many, treatment can begin right at home with options that are readily available.

  • Silicone Gel Sheets & Ointments: These are often the first recommendation for a reason. When applied to the scar for 12-24 hours a day, silicone products can hydrate the scar tissue, helping to soften and flatten it over several months. They are non-invasive and safe for most people.
  • Onion Extract Gels: Some OTC creams containing onion extract may help improve a scar's appearance and texture, though the scientific evidence is more limited compared to silicone products.

Professional Medical Treatments

If OTC options aren't providing the relief you need, or if the scar is more significant, a dermatologist can offer more advanced treatments.

  • Corticosteroid Injections: This is a very common and effective treatment. A dermatologist injects a steroid solution directly into the scar tissue. This helps to reduce inflammation and break down the excess collagen, making the scar flatter and softer. You may need a series of injections, typically spaced a few weeks apart, to see the best results.
  • Laser Therapy: Different types of lasers can be a great option. Pulse-dye lasers can target the blood vessels in the scar to reduce redness and stop its growth. Other lasers, like fractional lasers, work by creating microscopic holes in the tissue, which encourages the scar to remodel itself in a healthier, smoother way.
  • Cryotherapy: This involves carefully freezing the scar tissue with liquid nitrogen. The extreme cold helps to break down the hardened tissue, causing it to flatten over time. It can be used alone or in combination with other treatments like steroid injections.
  • Other Injections: For more persistent scars, other medications like 5-fluorouracil or bleomycin can be injected to reduce the size of the scar. These are typically reserved for cases where other treatments haven't been successful.

When to Consider Surgery

Surgical removal is sometimes an option, especially if a scar is very large or is located over a joint, causing tightness and restricting movement. A surgeon can remove the scar tissue and use special techniques to close the wound in a way that minimizes tension and encourages better healing. It's important to know that surgery is almost always combined with other treatments, like steroid injections or silicone sheets, to prevent the hypertrophic scar from returning.

Finding the right approach often involves patience and a partnership with your healthcare provider. Improvement is a process, and it may take trying a combination of therapies to achieve the best outcome. If you feel a treatment isn't working, don't lose hope. It's a sign to check back in with your dermatologist to explore other paths forward.

4. Duration & Outlook

Hypertrophic scars often develop within 4 to 8 weeks after a wound has closed and may continue to thicken for up to 6 months. Over a longer period, often 1 to 2 years, many hypertrophic scars will gradually improve on their own – they may become flatter, softer, and less red.

While some may improve significantly, they don't always disappear completely without intervention. They are generally considered a chronic issue if they persist, but they are benign (not cancerous) and don't usually lead to serious health problems. A warning sign to look out for would be if the scar starts to grow beyond the original wound boundaries, as this might indicate a different type of scar called a keloid, or if you notice any sudden changes like bleeding, ulceration, or significant pain, which would warrant a doctor's visit.

5. Prevention

While it's not always possible to prevent a hypertrophic scar, especially if you're prone to them, good wound care can help reduce the risk:

  • Keep any new wound clean and covered to prevent infection.
  • Avoid picking at scabs or disturbing the healing wound.
  • If you've had surgery, follow your doctor's instructions for wound care carefully, including any advice on minimizing tension on the scar.
  • For some types of wounds, especially burns, pressure garments or silicone gel sheets may be recommended early on by a healthcare professional to help prevent excessive scarring.
  • Protect healing skin from sun exposure, as this can make scars more noticeable.

6. Causes & Triggers

Hypertrophic scars are caused by an overproduction of collagen during the body's natural wound healing process. Instead of laying down just enough new tissue, the body makes too much, leading to a raised scar that stays within the original injury site.

Common triggers or contributing factors include:

  • Prolonged inflammation: Wounds that take a long time to heal, perhaps due to infection or repeated irritation.
  • Skin tension: Scars on areas of the body where the skin is tighter or moves a lot, like the chest, shoulders, back, and joints, are more prone to becoming hypertrophic.
  • Type of injury: Burns, deep wounds, or wounds that have had complications are more likely to result in hypertrophic scars.
  • Genetics: Some people are simply more prone to developing these types of scars.
  • Skin type: While anyone can develop them, individuals with darker skin tones may have a slightly higher risk.

Anyone who has an injury that breaks the skin can potentially develop a hypertrophic scar. Those with a history of such scarring, or with injuries in high-tension areas or from significant trauma like burns, are at higher risk.

7. When to see a doctor

It's always a good idea to see a healthcare professional if you're worried about a scar. Specifically, you should consult a doctor or dermatologist if:

  • The scar is causing significant itching, pain, or discomfort that affects your daily life.
  • The scar seems to be growing larger, especially if it starts to extend beyond the original wound boundaries (this might suggest a keloid).
  • The scar restricts movement, for example, if it's over a joint.
  • You notice any new or concerning changes in the scar, such as bleeding, ulceration, or a sudden change in color or texture.
  • The appearance of the scar is causing you significant emotional distress or self-consciousness.
  • You simply want to understand your options or get a professional opinion.

A dermatologist specializes in skin conditions and can provide an accurate diagnosis and discuss appropriate management if needed. Remember, they are there to help you.

8. Frequently Asked Questions (FAQs):

  • What's the difference between a hypertrophic scar and a keloid? This is a great question! The main difference is that a hypertrophic scar stays within the boundaries of the original wound. A keloid, on the other hand, can grow much larger and extend beyond the area of the initial injury.
  • Will my hypertrophic scar ever go away completely? Hypertrophic scars often improve over time, becoming flatter, softer, and less noticeable. However, they may not disappear completely on their own.
  • Are hypertrophic scars cancerous? No, hypertrophic scars are benign, meaning they are not cancerous and do not turn into cancer.
  • Can I get a hypertrophic scar from a small cut or even acne? Yes, unfortunately, any injury to the skin, including smaller cuts, piercings, or even severe acne spots, has the potential to develop into a hypertrophic scar, especially if you are prone to them or if the wound healing is complicated.
  • Is it normal for a hypertrophic scar to be itchy or tender? Yes, itching (pruritus) and tenderness are very common symptoms associated with hypertrophic scars, particularly when they are newer or still actively changing.

Living with any skin concern can be challenging, and I want you to know that seeking understanding is the first step. While this information aims to be helpful, please remember it's not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and guidance tailored to your specific situation.

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Quick Facts

ICD-10 Code
L90.5
Reference Images
1 clinical photos
Category
Dermatological Condition

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