How dangerous are colonoscopies? I am 65 and scheduled to have my first one soon

Colonoscopy. There are some risks associated with a colonoscopy but complications are rare. Your doctor should have gone over these before scheduling the test. The test is usually done under sedation so you should not feel anything or remember the test. The most common age to get diagnosed with colon cancer is 65 years old so getting the test is important if you have never had one before.
Not to worry. Colonoscopy is a safe procedure. The risk of the colonoscopy is small relative to the benefit obtained by screening for colon cancer.