Lima Memorial Health System Logo
Approximate ER WAIT TIME
5

Health Library

Keloids
     
Print-Friendly
Bookmarks

Keloids

Keloid scar; Scar - keloid

 

A keloid is a growth of extra scar tissue. It occurs where the skin has healed after an injury.

Causes

 

Keloids can form after skin injuries from:

  • Acne
  • Burns
  • Chickenpox
  • Ear or body piercing
  • Minor scratches
  • Cuts from surgery or trauma
  • Vaccination sites

Keloids are most common in people younger than 30. Black people, Asians, and Hispanics are more prone to developing keloids. Keloids often run in families. Sometimes, a person may not recall what injury caused a keloid to form.

 

Symptoms

 

A keloid may be:

  • Flesh-colored, red, or pink
  • Located over the site of a wound or injury
  • Lumpy or ridged
  • Tender and itchy
  • Irritated from friction such as rubbing on clothing

A keloid will tan darker than the skin around it if exposed to the sun during the first year after it forms. The darker color may not go away.

 

Exams and Tests

 

Your doctor will look at your skin to see if you have a keloid. A skin biopsy may be done to rule out other types of skin growths (tumors).

 

Treatment

 

Keloids often do not need treatment. If the keloid bothers you, discuss your concern with a skin doctor (dermatologist). The doctor may recommend these treatments to reduce the size of the keloid:

  • Corticosteroid injections
  • Freezing (cryotherapy)
  • Laser treatments
  • Radiation
  • Surgical removal
  • Silicone gel or patches

These treatments, especially surgery, sometimes cause the keloid scar to become larger.

 

Outlook (Prognosis)

 

Keloids usually are not harmful to your health, but they may affect how you look.

 

When to Contact a Medical Professional

 

Contact your health care provider if:

  • You develop keloids and want to have them removed or reduced
  • You develop new symptoms

 

Prevention

 

When you are in the sun:

  • Cover a keloid that is forming with a patch or adhesive bandage.
  • Use sunblock.

Continue to follow these steps for at least 6 months after injury or surgery for adults. Children may need up to 18 months of prevention.

Imiquimod cream may help prevent keloids from forming after surgery. The cream may also prevent keloids from returning after they are removed.

 

 

References

Dinulos JGH. Benign skin tumors. In: Dinulos JGH, ed. Habif's Clinical Dermatology. 7th ed. Philadelphia, PA: Elsevier; 2021:chap 20.

Patterson JW. Disorders of collagen. In: Patterson JW, ed. Weedon's Skin Pathology. 5th ed. Philadelphia, PA: Elsevier; 2021:chap 12.

BACK TO TOPText only

 
  • Keloid above the ear

    Keloid above the ear

    illustration

  • Keloid - pigmented

    Keloid - pigmented

    illustration

  • Keloid - on the foot

    Keloid - on the foot

    illustration

    • Keloid above the ear

      Keloid above the ear

      illustration

    • Keloid - pigmented

      Keloid - pigmented

      illustration

    • Keloid - on the foot

      Keloid - on the foot

      illustration

    Tests for Keloids

     
       

      Review Date: 11/18/2022

      Reviewed By: Elika Hoss, MD, Assistant Professor of Dermatology, Mayo Clinic, Scottsdale, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

      The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
      © 1997- adam.comAll rights reserved.