A door with an “EXIT” signal which operates automatically includes a door panel and a light source. The door panel includes a first plate. The first plate includes a front surface. The front surface defines a plurality of pits. The pits form a predetermined pattern, in the shape of a word. The light source is fixed above the first plate. The light source emits light to toward the pits to illuminate the predetermined pattern in the shape of a word when the door is in a closed state.