A system for applying compression treatment to a wearer's body includes a compression garment 10 positionable on the wearer's body. The garment includes an inflatable bladder and fasteners 14, 18. The fasteners are electrically conductive and form part of an electric circuit 22. Connection of the fasteners closes the electric circuit and disconnection of the fasteners opens the circuit. A controller 5 that provides air pressure to the garment is able to detect whether the electric circuit is opened or closed. The magnitude of the measured current of the electric circuit is compared to a certain current threshold. If the current is nonzero but its magnitude is not above the threshold, an indication is produced to indicate the connection that is present is not optimal for the best compression treatment.
