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Disease or Syndrome
erythema Audio
er·y·the·ma [ er-uh-thee-muh ]
Subclass of:
Dermatologic disorders; Skin Manifestations
Etymology:
Greek erythema = a blush; from erythros = red
Definitions related to erythema:
  • Red discoloration of the skin caused by infectious agents, inflammation, drug hypersensitivity, or underlying disease.
    NCI
    U.S. National Cancer Institute, 2021
  • Red discoloration of the skin.
    U.S. FDA Glossary
    U.S. Food & Drug Administration, 2021
  • Redness of the skin because of widening of capillaries just below the surface of the skin.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • Redness of the skin produced by congestion of the capillaries. This condition may result from a variety of disease processes.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Redness of the skin, caused by hyperemia of the capillaries in the lower layers of the skin.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • Erythema, any abnormal redness of the skin. Erythema is caused by dilation and irritation of the superficial capillaries; the augmented flow of blood through them imparts a reddish hue to the skin. Erythema may arise from a great variety of causes and disease conditions. Blushing is a transient...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.

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