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Causes and triggers of anaphylaxis

The most common causes of anaphylaxis are food and venom (wasp stings).

iconography representing causes and triggers

Common food triggers:

  • Peanuts
  • Tree nuts
  • Fish and shellfish
  • Fruit
  • Dairy products such as milk and eggs.

Anaphylaxis can also be triggered by:

  • Venom from stinging or biting insects. Wasp and bee venom are the most common insect allergens. On rare occasions stings from hornets and bumble bees can also cause allergic reactions.
  • Medicine – most commonly antibiotics, aspirin or ibuprofen
  • Latex
  • Exercise
  • Sometimes the cause may be unknown