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Classification according to ICD-10
L51.- Erythema exudativum multiforme
L52 Erythema nodosum
L53.- Other erythematous diseases
L54 .- * Erythema in Diseases Classified Elsewhere
ICD-10 online (WHO version 2019)
Erythema in Lyme disease

Erythema ( erythema , from ancient Greek ἐρύθημα erýthēma 'redness', 'inflammation') is a dermatological term for skin reddening (formerly also called redness ) caused by increased blood flow due to vasodilation , occasionally due to the side effects of drugs such as e.g. B. ACE inhibitors .


The erythema can appear in different sizes, color intensities, boundaries and dynamics. It can be a symptom of various infectious diseases and skin diseases , but it can also occur under normal circumstances (for example flushing: erythema pudoris, "affect erythema", see flushing ). In contrast to skin bleeding , an erythema can be temporarily discolored by applying pressure.

Redness that affects over 90% of the body surface is known as erythroderma .

See also


  • Otto Braun-Falco: Basics . In: Dermatology and Venereology . 5th edition, p. 10.
  • Peter Altmeyer: Erythema . In: Encyclopedia of Dermatology, Venereology, Allergology, Environmental Medicine .

Web links

Wiktionary: Erythema  - explanations of meanings, word origins, synonyms, translations
Commons : Erythemas  - collection of images, videos and audio files

Individual evidence

  1. ^ Wilhelm Gemoll , Karl Vretska: Greek-German school and hand dictionary . Verlag Hölder-Pichler-Tempsky, 9th edition, ISBN 3-209-00108-1
  2. Joachim Dissemond: Blickdiagnostik Chrischer Wunden About the clinical inspection for diagnosis (3rd edition), Viavital Verlag, Cologne 2016, ISBN 978-3-934371-55-2 , page 17
  3. Entry on erythema in Peter Altmeyer's encyclopedia, online version (Springer, 2016)