She Noticed These Red Spots on Her Legs After Walking in the Heat — Here’s What Experts Say

After spending time walking in hot weather, some people begin to notice unusual red spots appearing on their legs or arms. At first, it can look concerning — leading many to wonder if it’s something serious. However, experts say this is often a harmless condition known as exercise-induced vasculitis, which can occur after prolonged activity in heat. It usually fades on its own with rest, but its appearance can still surprise those who experience it for the first time. Knowing what causes it can help avoid unnecessary concern.