Keloid Scarring: Causes, Symptoms, and Treatment

What is Keloid Scarring?

Keloid scarring is an abnormal growth of scar tissue that forms at the site of a skin injury. Unlike normal scars, which fade over time, keloids extend beyond the original wound and can continue to grow. They are typically raised, thick, and may appear shiny or dark in color. Keloids are not harmful to your health but can be itchy, tender, or cause cosmetic concerns.

According to the Mayo Clinic, keloids occur when the body overproduces collagen during the healing process. They are more common in people with darker skin tones and can develop after minor injuries like acne, piercings, or surgical cuts.

Common Causes

Keloid scarring can develop from various types of skin injuries. Here are some common causes:

• Acne scars: Severe acne can lead to keloid formation, especially on the face, chest, or back.
• Body piercings: Ear piercings are a common site for keloids, particularly in the earlobe or cartilage.
• Surgical incisions: Cuts from surgeries, including cesarean sections or cosmetic procedures, can trigger keloids.
• Burns: Thermal or chemical burns may result in keloid scarring during healing.
• Chickenpox scars: Scratching chickenpox blisters can lead to keloid formation.
• Vaccination sites: Some people develop keloids at the site of vaccinations.
• Traumatic injuries: Scrapes, cuts, or abrasions can cause keloids if the skin heals abnormally.
• Tattoos: The needle punctures from tattoos can sometimes lead to keloid scarring.
• Insect bites: Scratching or irritating insect bites may result in keloids.
• Genetic predisposition: Some people are more prone to keloids due to family history.

The National Institutes of Health (NIH) notes that keloids are more likely to form in areas with high skin tension, such as the chest, shoulders, or earlobes.

Associated Symptoms

Keloid scarring can present with several symptoms, including:

• Raised, thickened skin: Keloids are typically elevated above the surrounding skin.
• Shiny or dark appearance: They may look glossy or darker than the surrounding skin.
• Itching or tenderness: Keloids can be itchy, painful, or sensitive to touch.
• Growth over time: Unlike normal scars, keloids can continue to grow beyond the original injury site.
• Restricted movement: If located near a joint, a keloid may limit mobility.

Keloids are benign (non-cancerous) and do not pose a serious health risk, but they can cause discomfort or self-consciousness.

When to See a Doctor

You should consult a healthcare provider if:

• You notice a scar growing larger or becoming raised.
• The scar is painful, itchy, or tender.
• The scar limits your movement or causes functional issues.
• You are concerned about the appearance of the scar.
• You have a history of keloids and are planning a surgery or piercing.

A dermatologist or plastic surgeon can evaluate the scar and recommend treatment options.

Diagnosis

Doctors typically diagnose keloid scarring through a physical examination. They may ask about your medical history, including past injuries, surgeries, or family history of keloids. In some cases, a biopsy may be performed to rule out other skin conditions, such as hypertrophic scars or skin cancer.

The American Academy of Dermatology (AAD) emphasizes that keloids are usually easy to identify based on their appearance and growth pattern.

Treatment Options

Treatment for keloid scarring aims to reduce symptoms, flatten the scar, and prevent recurrence. Options include:

Medical Treatments

• Corticosteroid injections: These are commonly used to reduce inflammation and flatten keloids. Multiple sessions may be needed.
• Surgical removal: A doctor may cut out the keloid, but there is a risk of recurrence. Surgery is often combined with other treatments like steroid injections.
• Laser therapy: Lasers can help reduce redness, flatten the scar, and improve texture.
• Cryotherapy: Freezing the keloid with liquid nitrogen can help shrink it.
• Radiation therapy: Used in severe cases to prevent keloid recurrence after surgery.
• Pressure therapy: Wearing silicone gel sheets or pressure garments can help flatten keloids over time.

Home and Alternative Treatments

• Silicone gel or sheets: Over-the-counter silicone products can help soften and flatten keloids.
• Onion extract gels: Some studies suggest these may help reduce scar size and redness.
• Massage: Gently massaging the scar with moisturizer may help improve its appearance.
• Avoiding irritation: Protect the scar from sun exposure and avoid picking or scratching it.

The Centers for Disease Control and Prevention (CDC) recommends consulting a doctor before trying home treatments to ensure they are safe and effective.

Prevention Tips

Preventing keloid scarring involves minimizing skin injuries and proper wound care. Here are some tips:

• Avoid unnecessary piercings or tattoos: If you are prone to keloids, consider avoiding elective skin procedures.
• Treat acne early: Use acne treatments to prevent severe breakouts that could lead to scarring.
• Keep wounds clean and moist: Proper wound care can reduce the risk of abnormal scarring.
• Use pressure or silicone sheets: After surgery or injury, these can help prevent keloid formation.
• Avoid sun exposure: Protect healing skin from UV rays to reduce pigmentation changes.
• Consult a doctor before surgery: If you have a history of keloids, discuss prevention strategies with your surgeon.

The World Health Organization (WHO) highlights the importance of early intervention in wound care to prevent complications like keloids.

Emergency Warning Signs

While keloids are generally harmless, seek immediate medical attention if you experience:

• Signs of infection: Increased pain, redness, swelling, or pus around the scar.
• Rapid growth: If the keloid suddenly enlarges or changes shape.
• Bleeding: Uncontrolled bleeding from the scar.
• Severe pain: Pain that worsens or does not improve with treatment.

These symptoms could indicate an infection or another underlying issue requiring urgent care.

For more information, visit reputable sources like the Mayo Clinic, Cleveland Clinic, or consult a healthcare professional.