Abstract: A portable therapeutic water massage mechanism according to this invention is adapted for utilization in conjunction with conventional bathtubs, such as are typically found in homes and hotels. A pump of the mechanism is adapted to be located outside of the bathtub, if desired, and communicates pressurized water from the bathtub to a pair of longitudinal water distribution conduits adapted to be located along each of the inside side walls of conventional bathtubs. Therapeutic massage nozzles are positioned in spaced relation along the water distribution conduits and function to direct massaging jets of water toward specific parts of the anatomy of a person within a bathtub.