Laptop-induced erythema ab igne: Report and review of literature

Dermatol Online J. 2012 Jun 15;18(6):5.


Erythema ab igne is an erythematous, reticular hyperpigmentation that results from prolonged thermal radiation exposure insufficient to cause a burn. Historically, lesions were found on individuals exposed to open fires or stoves, but more recently, erythema ab igne has been described in patients using portable electronics devices including laptops. We report a 21-year-old woman who presented with net-like hyperpigmentation on her thighs caused by prolonged laptop use. We also review the literature that describes other individuals with laptop-induced erythema ab igne and discuss the features of this condition.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Computers*
  • Erythema / etiology*
  • Female
  • Hot Temperature / adverse effects*
  • Humans
  • Hyperpigmentation / etiology*
  • Thigh / pathology
  • Young Adult