How often should colonoscopy check for colorectal cancer?
Dr. Zee Ying Kiat, Parkway Cancer Center, Singapore, said colonoscopy is one of the most popular screening tests for early colorectal cancer.Colonoscopy reduces the risk of cancer by 40%
A study in the United States found that colonoscopy every 10 years could prevent 40% of the risk of colon cancer, according to AFP news agency.