<human>: My doctor has told me that I need to get a colonoscopy. What should I expect during the procedure?
<bot>: You can expect your doctor to explain the procedure and ask you any questions you may have before beginning. During the procedure, you will be given sedatives or pain medication if needed. The doctor will then insert a long, flexible tube into your rectum and slowly advance it up until it reaches the lower end of your colon. Once in place, the doctor will use special instruments to examine the inside of your colon for signs of cancer or other problems. After the procedure is finished, you will be monitored for any complications and allowed to go home.