Diagnostic tests
There are a number of different tests used in the diagnosis of colorectal cancer
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- digital rectal examination - this is an examination of the rectum using the doctor`s finger to assess is there is any abnormality
- faecal occult blood - this is a stool sample that is sent to the laboratory to be tested for blood
- sigmoidoscopy - is a procedure using a long tube which allows the endoscopist to examine the large bowel. It is usual for biopsies to be taken
- colonoscopy - is a procedure using a long tube which allows the endoscopist to examine the bowel. It is usual for biopsies to be taken
- barium enema - is a procedure where barium liquid is inserted (via a tube) into the rectum. Once this has happened an x-ray is taken of the bowel
