Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 7/1/2025

Treatment of Keloids

Efficacy and Response Rates

  • Intralesional corticosteroid injection can stimulate hair regrowth at the site of injection in patients with localized lesions, with better response in those with fewer lesions 1
  • The American Academy of Dermatology recommends intralesional triamcinolone acetonide as the first-line therapy for keloid treatment, with the goal of flattening the keloid 2

Administration and Dosage

  • The American Academy of Dermatology recommends administering intralesional triamcinolone acetonide at 40 mg/mL concentration, every 3-4 weeks until the keloid flattens, with a maximum of 4-6 sessions 2
  • For facial or thin-skinned areas, diluting triamcinolone acetonide to 10-20 mg/mL may be considered to reduce the risk of atrophy 2

Side Effects and Complications

  • Potential side effects of intralesional corticosteroid injection include fat and/or dermal atrophy, pigmentary changes, folliculitis, adrenal suppression, transient Cushingoid features, and failure to thrive 1, 3
  • The risk of side effects can be minimized by using appropriate dosages and techniques, and by balancing efficacy with potential risks 2