Can KUB CT SCAN show bowel and stomach area?

Hello,
Thank you for your query at DoctorSpring.com
KUB is typically used to investigate gastrointestinal conditions such as bowel obstruction, gallstones, evidence of cholecystitis and can detect kidney stones. The KUB is often used to diagnose constipation as stool can be seen readily. The KUB is also used to assess positioning of indwelling devices such as ureteric stents and nasogastric tubes. KUB is also done as a scout film for other procedures such as barium enemas.
Yes the bowel can also be visualised, mainly to see if there is any fecal impaction and constipation.
Feel free to discuss further,
Regards.

So if I had a KUB a month ago that all came back normal and have had a stool test since that shows blood in stool would that test have seen any problems that might cause this blood. My dr seems to think it is due to hemorroids but I am curious as I only had the ct scan a month ago.

No hemorrhoids is a clinic finding and it won't be seen in a CT SCAN.
It can only be found on physical examination.
Regards.

What about any cancers or tumours etc? Would it have seen that?

Hello,
Yes a tumor or a SOL can be easily picked up on CT easily.
Regards.

Even bowel issues? As my dr has sent me off for a colonoscopy..

No only constipation and impaction of stool can be picked up.
Colonoscopy is the best investigation for bowel related issues.
Regards.