![90% of polyps](https://go.bauschhealth.com/rs/350-OKO-721/images/icon-160x161-polyps.png)
of polyps can be found by a colonoscopy
![Gold Standard](https://go.bauschhealth.com/rs/350-OKO-721/images/icon-115x88-gold-standard.png)
Colonoscopy is widely considered to be the gold standard for colorectal cancer screening.
![Tiers](https://go.bauschhealth.com/rs/350-OKO-721/images/icon-99x184-tiers.png)
Other tests can be used to check for colon cancer, but they aren’t as effective as a colonoscopy at finding polyps, and may also need to be done more often.