Some of the signs and symptoms include : rectal bleeding blood in stool change in bowel habits (diarrhea or constipation) abdominal pain fatigue Less commonly, large polyps may lead to intestinal obstruction. [healthhype.com]

If symptoms do appear, they may include: Changes in bowel habit, including constipation or diarrhea Blood in stools (either dark, tarry stools or bright red stools) Abdominal pain If this combination of symptoms persists for more than a week, make an [verywell.com]

stools may be an indication of rectal bleeding and should be evaluated by a doctor. [healthline.com]

(Blood in stool may also indicate the presence of conditions that are not cancer, such as hemorrhoids .) [cancer.gov]

Doctors may also look for the presence of blood in stools or examine the stool DNA. Depending on the results, they may then perform a colonoscopy to investigate further. Treatment Doctors will usually recommend surgery to remove polyps. [medicalnewstoday.com]

Several studies have indicated that intestinal dysbiosis may impact on the establishment of life-threatening intestinal diseases such as colorectal cancer. [nature.com]