There aren't many known risk factors for anaphylaxis, but some things that may increase your risk include:

  • A personal history of anaphylaxis. If you've experienced anaphylaxis once, your risk of having this serious reaction increases. Future reactions may be more severe than the first reaction.
  • Allergies or asthma. People who have either condition are at increased risk of having anaphylaxis.
  • A family history. If you have family members who've experienced exercise-induced anaphylaxis, your risk of developing this type of anaphylaxis is higher than it is for someone without a family history.
Jan. 16, 2013

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