The device for massaging a lower leg comprises a base pad (2) arranged in an area of the sole and a bladder (1) arranged in the region of the lower leg. A tubular connection is provided between the inner spaces of the base pad (2) and of the bladder (1). A frame (8) comprising a base part (12) and at least one side part (13, 7) projects upward from the tubular connection. The frame is mountable inside a shoe with the bladder (1) being fastened to the side part and the bladder (1) being positioned on the frame (8) in such a manner that it comes to lie above the perforating vein in the ankle area. A pressure is exerted by the bladder (1) onto the leg through the body weight applied to the base pad (2) when the foot is loaded.