Triggers

“Relying on the love and support of people who understand HAE helps me feel stronger and more at  peace with my condition.”

Lesa — Diagnosed with HAE in 1980

Discover possible triggers

Hereditary angioedema triggers

Hereditary angioedema (HAE) attacks are sometimes set off by a trigger. HAE can vary a lot from person to person, so your triggers might be very different from someone else who has HAE. For example, some people might only experience an HAE attack because they've gone through a physical trauma, like falling off a bicycle or having a dental procedure. For others, something as simple as making a repetitive motion, like using scissors, could cause an HAE attack.

HAE attacks tracker app

Want help keeping track of HAE attacks? The US Hereditary Angioedema Association (HAEA) has created an app that makes it easy for you to store your important information.

Here are some triggers that other people have recognized:

  • Emotional stress
  • Injury
  • Illness or infection
  • Hormonal influences, like menstruation or using a contraceptive containing estrogen
  • Mechanical pressure from physical activities like mowing the lawn or using scissors

Keep in mind that HAE attacks can also happen without warning or an obvious trigger. That can make it difficult to predict when an attack is coming, so it’s always important to have a plan in place in case of an unexpected emergency.

HAE treatment

Would you like to learn more about treatment for HAE?

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