A study of colorectal cancer screening using stool DNA-based SDC2 methylation test

Inclusion Criteria:

• Patient who agreed the clinical trial and signed informed consent
• High risk patient for colorectal cancer (family history of colorectal cancer, history of adenomatous polyp excision, inflammatory bowel disease > 15 years, or history of hereditary colorectal cancer)
• Patient who scheduled to receive colonoscopy
• Stool > 20g before bowel preparation for colonoscopy

Exclusion Criteria:

• No high risk patient under 60 years
• History of colorectal cancer
• Stool < 20g or sample after bowel preparation
• Diarrhea or liquid stool which cannot be evaluated
• Patient who is judged as not suitable for clinical trial including a psychiatric disorder by a physician