Hereditary angioedema, type 1: A rare disorder characterized by recurring episodes of swelling of parts of the skin or mucous membranes. Sometimes internal organs may be involved. Symptoms can last for up to five days with usually weeks between episodes. Type I is the most common type and is due to the reduced production of C1 inhibitor proteins. Episodes can be triggered by emotional or physical stress but can occur spontaneously. More detailed information about the symptoms, causes, and treatments of Hereditary angioedema, type 1 is available below.
See full list of 20 symptoms of Hereditary angioedema, type 1
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Hereditary angioedema, type 1 is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Hereditary angioedema, type 1, or a subtype of Hereditary angioedema, type 1,
affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)
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