An absorbent article for absorbing liquid discharge of a wearer when worn in the crotch region,, the liquid discharge being urination, menstruation or liquid faecal matter. The absorbent article comprises at least one conductive loop in an open loop shape having terminal ends for electrically communicating with opposing poles of an electric potential generator such that current flows around the full conductive loop between the terminal ends when a space defined within the open loop shape is dry and such that liquid discharge in the space defined within the open loop shape is able to cause a short circuit in the conductive loop so that the current flows around a reduced impedance path as compared to the impedance of the full conductive loop. The impedance change is measureable to determine a location relative to the terminal ends where the liquid discharge has caused the short circuit. The at least one conductive loop is a first conductive loop. The article further comprises a second such conductive loop. The first and second conductive loops are oriented such that the direction in which the current travels up an outward leg of the respective conductive loop is in substantially the opposite direction for the first conductive loop as for the second conductive loop.
