Causes of Hereditary Angioedema

FIRAZYR is a medicine used to treat acute attacks of hereditary angioedema (HAE) in adults 18 years of age and older.
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HAE is often hereditary, but not always

As the name suggests, hereditary angioedema (HAE) is often passed through families. Literature suggests that about 75% of cases are inherited this way.

Still, about 25% of people with HAE have no family history at all. These cases result from a spontaneous change in the genetic code. Once this change happens, the altered gene and disease can be passed on to children.

HAE and your family

If you have HAE, you may find that the condition is common in your immediate and extended family. This could include your siblings, parents, aunts, uncles, cousins or grandparents.

If one parent has HAE, there is a 50% chance that his or her child will be affected.