The key points for a minimally traumatic and pain-free anal intubation are an informed patient, gentle technique, plenty of lubricant, a relaxed, supportive atmosphere, and gradual inward pressure on the instrument or finger. Also important are knowledge of the direction of the anal canal, sideways introduction of the flexible endoscope, and the technique of gaining anal relaxation by asking the patient to push down.
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Farmer, K.C.R., Church, J.M. Open sesame: Tips for traversing the anal canal. Dis Colon Rectum 35, 1092–1093 (1992). https://doi.org/10.1007/BF02253002
- Anal canal
- Rectal examination
- Surgical technique