Abstract The present invention relates to a method of performing a mastopexy procedure. The method includes the steps of: a) inserting a filament into breast tissue of a patient's breast; b) anchoring said filament at a first location and a second location so that the filament extends between the first and second locations; and c) positioning said filament within the breast tissue so that the filament between the first and second locations acts as a stay supporting at least a part of the weight of the breast.