Stool Sample Collection Protocol for Development of Screening Test for Colorectal Cancer and Other Digestive Tract Cancers

Inclusion Criteria: * Subject is male or female, 40-90 years of age, inclusive. * Subject has a diagnosis of CRC, at any stage, confirmed with a tissue biopsy or colorectal polyp/adenoma/mass that is equal or larger than 1 cm in pre-enrollment colonoscopy with residual lesion in the colon of sufficient size to require additional surgical excision or complex colonoscopic polypectomy. * Subject understands the study procedures and is able to provided informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator. Exclusion Criteria: * Subject has actively bleeding hemorrhoids (blood on toilet paper or bright red blood clots in the toilet bowel during bowel movement). * Individual has a condition the Investigator believes would interfere with his or her ability to provide informed consent, comply with the study protocol, which might confound the interpretation of the study results or put the person at undue risk.