One exemplary method for removing and/or inhibiting unwanted molecular structures and/or cells from or at human or animal tissue, can include the steps ofa) supplying fluid medium so that the fluid medium is adjacent to or covers the molecular structures and/or cells that are to be removed and/or inhibited,b) generating pressure pulses in the fluid medium, wherein preferably each pressure pulse comprises a pressure current and/or a pressure wave and/or a shock wave and/or wherein preferably the pressure pulses have the form of a pressure jet of the fluid medium that is or can be directed onto the molecular structures and/or cells, and/or exhibit at least one preferential direction or main propagation direction,c) removing the molecular structures and/or cells from the tissue by the impacting pressure pulses and/or inhibiting molecular structures and/or cells which remain at the tissue by the impacting pressure pulses,d) wherein the pressure pulses are so formed or selected that during removing and/or inhibiting of the molecular structures or cells no hole or comparable damage is produced in the adjacent tissue by the pressure pulses.
