Hello Lucaf

I am sorry to hear you you are worried about your health

I'm afraid no one here can say where this blood on the toilet tissue has come from. It is reassuring that your doctor couldn't see anything on inspection of your anal area and the FIT tests have both come back negative.

I am sure you are aware that there can be other reasons for rectal bleeding other than cancer and sometimes there may be no obvious cause. Of course if you continue to notice blood or are having any other worrying symptoms to discuss them with your GP.

Occasionally the foods we eat can discolour our poo so that's also worth bearing in mind.

Best wishes

Naomi

Thank you Naomi for replying.  According to the NHS guidelines,  if the first screening test for colon-rectal  cancer( FIT  test) is negative, there are not any reason for other follow-up procedures like colonscopy. Is that correct? But if I keep having certain symptoms ( may be separately) can I  have the right to insist at the GP to refer me for a colonscopy? It would be 100% secured in terms of any diagnosis. As far as I know FIT test may not detect cancer in the proximal part of intestine and stomach. Thank you a lot

What is an FIT test

What is an FIT test

It stands for Fecal immunochemical test and it is for looking occult blood in your Gastrointestinal tract , caused by cancer or any other inflammatory diseases. This kind of blood is not visible but under the microscope.  

Thank you