&NA;Anorectal dysfunction can be an extreme embarrassment and inconvenience to persons afflicted with the condition, disrupting their lifestyle. Evaluation of the anal sphincter and the distinction between muscular and neural etiology is essential. Three‐dimensional imaging of the anal sphincter by use of anorectal manometry with an eight‐port perfused catheter combined with computer analysis aids in defining anal sphincter function. The use of three‐dimensional imaging is valuable to the physician in the determination of the presence of a muscular defect, the location of the defect and the appropriateness of surgical intervention to resolve the anal dysfunction.