Angioedema Symptoms, Causes and Diagnosis

There is nothing much to say about idiopathic form as it is not deeply studied. Health care providers cannot define the exact causes of this Angioedema. However, they can diagnose it. As for the hereditary form, it is only possible when patient’s parents or close relatives have the corresponding signs. The main symptom is low blood level of the C1 inhibitor (protein). Pregnancy and different injections may be the causes too.