HAE is a life-threatening condition marked by recurrent angioedema attacks in parts of the body including the larynx, face, extremities and abdomen. It is classified under Japan's "primary ...
Attacks of HAE are often painful and can spread to multiple sites of the body, including the abdomen, larynx, face, and extremities. HAE occurs in about 1 in 50,000 people of any ethnic group.