Keloid Infection - Causes, Treatment & When to See a Doctor

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What is Keloid Infection?

A keloid infection occurs when bacteria enter a keloid—a raised, thickened scar that grows beyond the original wound site. While keloids themselves are benign, they can become susceptible to infection if damaged. This complication is rare but requires prompt medical attention to prevent spreading infection and complications. Keloids commonly form on areas like the chest, shoulders, or earlobes, where skin is thin or injured.

According to the Mayo Clinic, keloids are caused by an overproduction of collagen during wound healing. When infection develops, it can lead to increased inflammation, pus, and delayed healing. It’s critical to distinguish keloid infections from cellulitis (a bacterial skin infection) or abscess formation.

Common Causes

Keloid infections are not common, but certain factors increase the risk. Below are the most frequent causes:

• Trauma to the keloid: Scratching, squeezing, or accidental cuts on existing keloids introduce bacteria.
• Friction or pressure: Tight clothing or jewelry rubbing against keloids can cause micro-tears.
• Hot tubs or pools: Prolonged exposure to humid or bacteria-soaked water near keloids.
• Skin conditions: Eczema, psoriasis, or dermatitis near keloids may weaken the skin barrier.
• Immunosuppression: Conditions like HIV or medications (e.g., corticosteroids) reduce infection-fighting abilities.
• Diabetes: Poor blood sugar control impairs wound healing and increases infection risk.
• Piercings or surgeries: Procedures near keloids can breach the scar tissue.
• Animal or human bites: During the healing phase of keloids.
• Age: People under 30, especially teens, are prone to keloids and infections due to rapid healing.
• Ethnicity: Individuals with darker skin tones have higher keloid risk, per the Cleveland Clinic.

Associated Symptoms

Symptoms of a keloid infection overlap with general skin infections but often include:

• Redness and warmth: The infected area may feel hot to the touch.
• Swelling: Beyond typical keloid size, indicating fluid buildup.
• Pus or drainage: Yellow or greenish discharge from the keloid.
• Pain or tenderness: Localized discomfort increasing with movement.
• Fever or chills: Signs the infection may be spreading systemically.
• Itching or burning: Often worse at night.

If these symptoms appear, the CDC advises consulting a doctor promptly, as untreated infections can lead to serious complications like sepsis.

When to See a Doctor

Seek medical help if you notice:

• Increased redness or swelling that spreads beyond the keloid.
• Pus or foul-smelling discharge.
• Persistent fever above 101°F (38.3°C).
• Worsening pain or tingling in nearby areas.
• Chills or fatigue lasting over 24 hours.

Do not delay treatment, as infections can spread to deeper tissues or the bloodstream. Early intervention improves outcomes.

Diagnosis

Diagnosing a keloid infection involves a combination of physical examination and tests:

1. Physical exam: Doctors check for signs of infection, such as pus or warmth.
2. Culture tests: If pus is present, a sample may be taken to identify bacteria.
3. Blood tests: To check for elevated white blood cell counts or signs of systemic infection.
4. Imaging: Rarely, ultrasound or MRI may assess deeper tissue involvement.

Source: NIH. These steps help rule out other conditions like cellulitis or abscesses.

Treatment Options

Treatment aims to clear the infection and prevent recurrence. Options include:

Medical Treatments

• Antibiotics: Prescribed for bacterial infections (e.g., cephalexin or clindamycin), as per UpToDate guidelines.
• Incision and drainage: If an abscess forms, a doctor may drain it surgically.
• Topical or oral corticosteroids: To reduce inflammation in the keloid.

Home Care Tips

• Gently clean the area with MoistureDermatologically tested antiseptics (e.g., hydrogen peroxide or diluted bleach solutions).
• Avoid picking or scratching the keloid.
• Apply a sterile bandage to protect the area from friction.
• Use over-the-counter pain relievers like ibuprofen for discomfort.

Prevention Tips

Preventing keloid infections focuses on protecting the skin and managing risk factors:

• Protect the keloid: Wear loose, soft clothing over the area.
• Maintain hygiene: Keep the keloid clean with mild soap and water.
• Avoid trauma: Steer clear of hot tubs or abrasive activities.
• Treat underlying conditions: Manage diabetes or immunosuppression with a doctor.
• Consider silicone sheets: For non-infected keloids, they may reduce growth, per Cleveland Clinic.

Emergency Warning Signs

These are red flags requiring immediate care:

• Severe pain that doesn’t ease with medication.
• High fever (over 103°F or 39.4°C) with chills.
• Rapid spreading of redness or swelling.
• Nausea, vomiting, or dizziness (signs of sepsis).

Contact emergency services or your doctor right away if any of these occur. Early treatment of severe infections can be life-saving.

This article was reviewed by healthyungency clinic medical professionals for accuracy and relevance to symptom checker users.

``` ### Key Features: - **Clear Structure**: Uses semantic headings (H2) for easy navigation. - **Actionable Advice**: Practical steps for patients to follow. - **Reputable Sources**: Cites Mayo Clinic, CDC, NIH, and Cleveland Clinic. - **Warning Emphasis**: Highlights critical signs in danger format. - **Accessible Language**: Avoids jargon while ensuring medical accuracy. This article educates readers about keloid infections while stressing the importance of timely medical care.