A method of treating a prostate condition, including the steps of providing a needleless injector that includes a body at a proximal end, an injection shaft extending from the body to a distal end of the injection shaft, an injection orifice at the distal end of the injection shaft and positioned for fluid ejection in a lateral direction relative to a longitudinal axis of the injection shaft, a pressure source in communication with the fluid chamber, and an extendable tissue tensioner located at the distal end of the injection shaft proximal to the injection orifice inserting the injection shaft into a urethra so the injection orifice is located within the prostatic urethra actuating the tissue tensioner to contact urethral tissue, and injecting fluid from the injection orifice into the prostate.
