The faecal occult blood (FOB) test detects small amounts of blood in your faeces, which would not be normally visible. FOB is vital in the diagnosis of bleeding disorders of the gut (intestine)…. For example, gastric or duodenal ulcers, ulcerative colitis, bowel polyps, and bowel (colorectal) cancer. Bowel (colorectal) cancer screening aims to detect colorectal cancer at an early stage when there is a good chance that treatment will cure the cancer. Weqas assures the accuracy of FOB/FIT diagnostic testing with an accredited FOB EQA programme and working towards accreditation of FIT to ISO 17043.