Stool: Body waste excreted from the bowel; feces.
Stool Tests: A test to check for hidden blood in the bowel movement.
Rectum: The last 8 to 10 inches of the large intestine.
Colon: The long, coiled, tube like organ that removes water from digested food. The remaining material, solid waste called stool, moves through the colon to the rectum and leaves the body through the anus.
Colonoscopy: Visualisation of the colon with a flexible lighted instrument (colonoscope) passed through the anus.
Immunization: The creation of immunity; Introduction of antigens into the body in order to stimulate the development of immunity.
Sterilisation: The process by which all microorganisms are killed, as in sterilization of surgical instruments. Or, the process, usually surgical, of rendering a man or woman incapable of reproduction.