This is a randomized controlled trial (RCT) to evaluate the efficacy of anorectal biofeedback therapy for functional constipation secondary to pelvic floor dyssynergia. Participants will be randomized to either six sessions of anorectal biofeedback or to six sessions of generalized biofeedback.
Participants will complete questionnaires at baseline, at completion of randomized treatment(12 weeks), and six months after completion of treatment to measure change in bowel habits, constipation severity, constipation-related quality of life, and constipation-related disability. An examination of psychosocial factors will also be conducted prior to treatment to distinguish which ones are predictive of biofeedback success for functional constipation.