Is pelvic floor rehabilitation therapy effective for interstitial cystitis (aka: painful bladder syndrome)?

For symptoms yes: But it probably doesn't actually treat the condition ie heal the bladder wall. Painful bladder syndrome includes manythings that aren't ic such as pelvic floor dysfunction that will respond well to rehab.

YES: Many cases of ic or pbs are really problems of pelvic muscle and nerve dysfunction and not a bladder disease. Pelvic floor pt can be incredibly helpful.