What is a common response of the body during anaphylaxis?

During anaphylaxis, the body often responds with the production of hives, also known as urticaria. This condition arises from the release of histamine and other chemicals from mast cells and basophils during an allergic reaction. As these substances enter the bloodstream, they cause the skin to break out in red, itchy welts. Hives can appear anywhere on the body and are a classic sign of anaphylaxis, indicating that the immune system is reacting aggressively to a perceived threat.

Understanding this response is crucial for recognizing the signs of anaphylaxis and administering appropriate treatment, such as epinephrine, which counteracts the severe allergic reaction. Other responses that may occur during anaphylaxis include difficulty breathing, swelling, and gastrointestinal distress, but the development of hives serves as an important and visible indicator of the body's altered state during a severe allergic reaction.