Learn what hives look like.
Urticaria (hives) is a common itchy rash that appears as raised, red bumps in various shapes and sizes. The bumps often group together to form geographic shapes. The rash changes quickly over minutes to hours, and leaves normal skin behind.
Photo © A.D.A.M.
Hives are a common itchy rash, and many people mean different things when they refer to this rash. Learn exactly what hives look like.