Defining non-invasive pelvic physical therapy as invasive would be a mistake with far-reaching consequences. Would palpating mandibular condylar movement for pain by inserting a finger into the patient's ear constitute an invasive therapy? How about performing a long-axis distraction mobilization of the TMJ? Each of these procedures involves the insertion of the therapist's finger into a patient's body cavity, and throughout medicine and physical therapy, these standard procedures have not been considered "invasive" procedures. Please keep the definition of pelvic physical therapy as "non-invasive."