Hereditary angioedema (HAE) is a rare, potentially life-threatening genetic disorder. It can cause painful swelling in any part of the body. HAE attacks can happen without warning and last for days.

Do you have questions about HAE? We're here to help you find answers. DISCOVER HAE

Is HAE rare?

HAE only affects between 1 in 10,000 and 1 in 50,000 people in the entire world. Because HAE is rare, few people know about it—and that includes doctors. That can make it difficult to find information about HAE. So, we've created a space for you to start learning. DISCOVER ANSWERS


Up to 65% of patients with HAE may have been misdiagnosed with another condition prior to receiving their HAE diagnosis.*

If you think there's a chance you could have HAE, use this Doctor Discussion Guide to help start a conversation with your doctor.

*In a 2010 online survey of 313 patients.

Discover your symptoms
Liz Diagnosed with
HAE in 2013

Is HAE manageable?

Currently, there is no cure for HAE. However, there are things you can do to help manage it. HAE can be very different from person to person, so it's important to work with your healthcare team to develop a plan that's right for your specific situation.

Is HAE support available?

If you or someone you love has a rare disease like HAE, it can feel like few people understand what your life is like. But you’re not alone.

The HAE community is full of people who can relate to your personal experiences.

Alex Diagnosed with
HAE in 2014