Role of three-dimensional endoanal ultrasound in assessing the anal sphincter morphology of female patients with chronic proctalgia

Table 1 Rome III diagnostic criteria for chronic proctalgia[3]

1 Presence of all of the following for at least 6 mo: (1) chronic or recurrent rectal pain or aching; (2) duration of episode: at least 20 minutes; and (3) exclusion of other causes of rectal pain (such as ischemia, abscess, fissure, coccygodynia and hemorrhoids)

1.1 Levator ani syndrome: meet the diagnostic criteria for chronic proctalgia, and tenderness on posterior traction on puborectalis

1.2 Unspecified functional anorectal pain: meet the diagnostic criteria for chronic proctalgia, and no tenderness on posterior traction on puborectalis