A colonoscopy is a visual exploration of the lining of the colon. The colon is the large intestine in the digestive system.
When conducting a colonoscopy, the Doctor will insert a flexible fiber-optic instrument (colonoscope) through the rectum to examine the colon. Through this visual probe, the doctor can detect any anomaly.
Through the course of the exploration, and if necessary, the doctor will take small samples of tissue (biopsies) to be sent to the lab for further analysis. The tissue extraction does not cause any pain. It is also possible to remove polyps during the colonoscopy.
- Prior to the colonoscopy, it is necessary that the patient be fasting and the patient’s colon be clean. The doctor will prescribe a laxative for optimal colon cleansing.