I'm looking for someone to help me decifer some awful news that I received from the Dr's. I had a fit test that came back positive for blood in my poo. It was 15
They wanted a repeat test and it came back four times higher than the previous result last week, it's now 61.
I have a horrible feeling I know what the cause is. I've experienced a lot of weight loss and vomiting these past few months. I've got an urgent appointment with my Dr next week but I can't wait that long. Can someone eitheir be honest with me (I know there's lots of medical professionals on here, myself included) or reassure me. I'm in peices rn šš
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Itās nothing until itās something wait to hear from your doctor

Iām sorry to hear that you are going through this. I would be a nervous wreck too. In no way I know what you are going through but I would try to keep in mind if it was urgent enough they would have you come in right away. That is something I always try to tell myself. From my understanding you would probably need to undergo more testing for an answer, like a colonoscopy.
Pulled from google ā A positive FIT is not a cancer diagnosis. It only detects blood. While it can be a sign of polyps or cancer, it also commonly detects bleeding from non-cancerous causes like hemorrhoids, anal fissures, ulcers, or inflammatory bowel disease (IBD).ā
I hope you get the answers you are looking for soon. Please reach out if you need to vent. I always crash out anytime I have something medical related

I presume theyāll schedule a colonoscopy and endoscopy which can pick up a number of things , so easy to say not to think the worse but there are so many things it could be that arenāt cancer

Iāve had both, so if youāve any questions ask away! Are you in the uk?x

Okay, letās look at what the test measures and its accuracy. Since it detects blood in the stool, that could come from several causes⦠hemorrhoids (including internal), inflammation, polyps, or cancer. So there are multiple less concerning possibilities.
Next, the numbers⦠it has high specificity (90s), meaning if it finds blood, itās usually realābut not necessarily from cancer. Sensitivity is lower (around 70ā80%), so it catches many cancers, but not all.
Translation: A positive result means blood was found, not the cause.
In practice⦠only about 3ā10% of people with a positive FIT test have colorectal cancerāmore often itās polyps or other benign causes.
So, overall⦠all you know right now is thereās blood in the stool. Iād try to hold onto that and not catastrophize (easier said than done) while waiting to learn more.