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Un alergeno es una sustancia que puede provocar una reacción alérgica. En algunas personas, el sistema inmunitario considera a los alergenos "extraños" o "peligrosos". Esto es lo que lleva a que se presenten síntomas de alergias.

Nombres alternativos


Los alergenos comunes abarcan:

  • Caspa y proteínas de animales
  • Bacterias y virus
  • Químicos
  • Polvo
  • Fármacos (como antibióticos o medicamentos que se aplican sobre la piel)
  • Alimentos (como la leche, el chocolate, las frambuesas y el trigo)
  • Perfumes
  • Plantas
  • Polen
  • Humo


Wasserman SI. Approach to the patient with allergic or immunologic disease. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 257.

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  • Last reviewed on 1/13/2013
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.

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This page was last updated: May 20, 2014

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