Hives—medically known as urticaria—are those annoying, itchy, red welts that can suddenly erupt on your skin and vanish just as quickly.
Most people connect them with food allergies or medications, but there are many other lesser-known causes that might be to blame. Understanding these hidden triggers can help you pinpoint the source of your outbreaks and take effective steps to manage them.
Let’s explore 10 surprising reasons why hives might be showing up—and what you can do about them: