I put off having one until last year when I was 61. They found cancer. I was lucky as they were able to remove the cancer last July and there was no lymph nodes close by. I was on a bag for several months and then had to go through another surgery to rehook my plumbing up in January this year. Since the cancer was discovered I have had about 6 colonoscopy's of one type or another with the last one being last month and everything was good. It would have been easier if I had gone 10 years early and routinely there after. I am also very blessed that it had not spread.