Diseases

Hyperemia

The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).

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Synonyms

15 entry terms
  • Hyperemias
  • Active Hyperemia
  • Arterial Hyperemia
  • Passive Hyperemia
  • Reactive Hyperemia
  • Venous Congestion
  • Venous Engorgement
  • Congestion, Venous
  • Engorgement, Venous
  • Hyperemia, Active
  • Hyperemia, Arterial
  • Hyperemia, Passive
  • Hyperemia, Reactive
  • Hyperemias, Reactive
  • Reactive Hyperemias

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Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

History Note

1966; for VENOUS ENGORGEMENT use VEINS 1978-2006

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References

  1. National Library of Medicine. Hyperemia. Medical Subject Headings (MeSH). 2026. Unique ID D006940. http://id.nlm.nih.gov/mesh/2026/D006940
  2. Hyperemia. In: Wikipedia. https://en.wikipedia.org/wiki/Hyperaemia
  3. Hyperemia. In: Wikidata. https://www.wikidata.org/wiki/Q948806