A breast implant system is provided comprising a plurality of chambers including one or more first fluid chambers (1) and one or more second fluid chambers (2). The first fluid chamber (1) forms part of a breast implant (10), whereas the second fluid chamber (2) may also form part of the breast implant or may be implanted remote from the breast implant. The first and second fluid chambers are interconnected so as to allow exchange of fluid between the first and second chambers, thereby causing the shape and, depending upon the specific embodiment, also the volume to change accordingly.