Angioedema is a condition characterized by swelling beneath the skin, often occurring in conjunction with hives. This swelling, sometimes referred to as “giant hives” by medical professionals, primarily affects the deeper layers of the skin, especially the lips and face. While angioedema can be frustrating, it is generally harmless and does not leave any scarring or lasting marks. Although rare, in some cases, angioedema may indicate an underlying and more serious medical condition. However, in most instances, the symptoms of angioedema subside over time.
Causes of Angioedema
Angioedema is usually caused by an allergic reaction that triggers inflammation in the body. This inflammation occurs when the body produces an excessive amount of histamine, causing blood vessels to swell. Although angioedema is similar to hives in appearance, it is a more severe reaction. Common allergens such as latex and insect bites can lead to the development of hives or angioedema. Additionally, airborne allergies like hay fever and dust mites can also trigger angioedema. In some cases, angioedema may be associated with autoimmune conditions like lupus or leukemia.
Factors that Increase the Risk of Angioedema
There are several factors that can increase the risk of developing angioedema. Individuals who have previously experienced angioedema are more susceptible to future occurrences. Additionally, those who have a history of allergic reactions are also at a higher risk. In rare cases, angioedema can be inherited through a genetic condition known as hereditary angioedema.
Furthermore, certain environmental and physical factors can trigger angioedema or hives. Sudden changes in temperature and high levels of stress can contribute to the development of angioedema. It is also possible for angioedema to occur as a result of a previous injury.