absorbent article changes color.

absorbent article for feminine hygiene comprising at least one active region, wherein said active region constitutes at least a part of said article and is provided with a material that changes color, wherein said material which changes color change color in response to an external stimulus and wherein the color change is noticeable from outside said article, characterized in that said stimulus is selected from at least one of temperature change, application of pressure and exposure to light, and wherein said material which changes color is selected from a thermochromic material, a piezochromic material, a photochromic material and combination thereof.