Assessing Effect of Withdrawal Time on Adenoma Detection Rate for Screening Colonoscopy

Inclusion Criteria: * Must be between the ages of 18 and 75 years * Must be a patient undergoing screening or surveillance colonoscopy * Must be able to understand and willing to sign an IRB-approved written informed consent document. Exclusion Criteria: * Inability to provide informed consent. * Personal history of colorectal cancer (CRC) * Personal history of colon surgery or colon resection * Personal history of Inflammatory bowel disease * Personal history of familial polyposis * Current pregnancy * Active GI bleeding * Colonoscopy exams where the cecum cannot be reached (randomization will occur after cecum is reached).