Functional Anorectal Disorders

Abstract

Functional anorectal disorders are characterized by constipation and are often associated with ineffective defecation, inappropriate contraction or weakening of pelvic floor muscles, abnormal propulsive forces, or outlet obstruction. Initial treatment is largely nonsurgical, and often involves behavioral and diet modification, fiber and bulking agents. Biofeedback also may be effective in some of these disorders. Surgical management is controversial and with limited studies of varying success.