Anorectal manometry is widely used to assess diagnose defecatory disorders (DD) and evaluate anorectal functions in patients with fecal incontinence (FI). [1][2][3][4][5] There is consensus that anorectal pressures should be measured at rest, during squeeze, simulated evacuation, and a Valsalva maneuver. 3,6,7 The rectoanal inhibitory reflex and rectal sensation are also evaluated during this test. Some centers also evaluate rectoanal pressures during a cough maneuver. 8 The equipment, the methods used to conduct anorectal manometry, and to analyze studies and interpret findings are not standardized. 9 The procedure can be performed with water-perfused, solid state, air-charged, or highresolution catheters. 1 High-resolution manometry (HRM) catheters provide better spatial resolution than non-HRM catheters. However, HRM catheters made by different manufacturers are not identical.The methods for HRM (e.g., the number and duration of squeeze