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Figure 4. Pathophysiological basis for faecal incontinence, as revealed by objective anorectal physiological testing. `Mixed' represents any combination of the other three physiological abnormalities (anatomical; sensory; neurogenic). `None identified' signifies that none of the three other pathophysiologies were demonstrated; however, 41% of these patients had reduced anal pressures on manometry. {blacksquare} Female; {square} male