Devices, systems, and method for treating urinary incontinence generally rely on energy delivered to a patient's own pelvic support tissue to selectively contract or shrink at least a portion of that pelvic support tissue so as to reposition the bladder. Devices and methods apply gentle resistive heating of tissues to cause them to contract without imposing significant injury on the surrounding tissue structures. Alternative heat-applying probes heat tissue structures which comprise or support a patient's urethra. By selectively contracting the support tissues, the bladder neck, sphincter, and other components of the urinary tract responsible for the control of urinary flow can be reconfigured or supported in a manner which reduces urinary leakage.