What is retroflexion procedure in colonoscopy?

Retroflexion is an advanced colonoscopy technique used to provide a complete view of the colon and reach hard-to-visualize areas. It involves flexing the tip of the colonoscope in the opposite direction of its normal curvature to allow the physician to see around corners and into narrow sections. Retroflexion is particularly useful for examining areas such as the ileocecal valve, the junction of the small intestine and the large intestine, and behind colonic diverticula or polyps.

To perform retroflexion, the physician carefully maneuvers the colonoscope by turning the control knobs on the endoscope handle. The colonoscope is gently guided into the area of interest and the tip is flexed upwards or downwards. This allows the physician to visualize areas that may not be visible during a standard colonoscopy.

Retroflexion is typically used when the physician needs a more detailed view of a specific area or to remove a polyp or other abnormality that is located in a difficult-to-reach area. It is considered a safe and effective technique when performed by an experienced physician.

However, it's important to note that retroflexion is not always necessary or appropriate for all colonoscopies. The physician will determine if retroflexion is needed based on the individual patient's situation and the findings during the procedure.