An apparatus for morcellating tissue includes a flexible outer container (1), an electrically conductive mesh (7) disposed within the container, and one or more connections (8, 9) by which the mesh (7) can be energised to form at least a part of a bipolar electrode assembly capable of cutting tissue coming into contact therewith. The mesh (7) includes a first section (14, 17) constituting one or more active electrodes, a second section (15, 18) constituting one or more return electrodes, and one or more insulators (16) separating the first section from the second section. The apparatus includes an elongate shaft (2) from which the flexible outer container (1) can be deployed, and actuators for closing the mesh (7) around tissue to be morcellated, and for deploying and withdrawing the flexible outer container (1) with respect to the shaft (2).
