How does colon cancer affect the body?

Depends: Early on there may be no effect. As the disease progresses undiagnosed, you may develop a change in bowels, blood in stool, abdominal pain, weight loss, loss of appetite, lethargy, loss of stamina, bowel obstruction, shortness of breath, anemia, early diagnosis in high risk patients or regular colonoscopies is the best way to avoid all of the above.

Bleeding: In early phase it will cause change in bowel movement, bleeding from the gastrointestinal tract. Later, it may cause obstruction due to stricture. Eventually, the cancer spread and takes on the general well being of the host and kills the patient.

Lots of changes: Colon cancer can lead to pain, abdominal swelling, bloating, bloody stools, spread to other organs and eventually death if left untreated. Fortunately we have many effective therapies for patients with colon cancer.

Blockage/Bleeding: Depending on their size and location, colon cancers may cause the above problems. The bleeding tends to be very slow, like a dripping faucet, and may not be evident by sight. Obstruction can cause a change in bowel habits (constipation, pencil-thin stools) and/or bloating. Like any cancer, there is the potential to spread to other organs, which may cause fatigue, loss of appetite, wt loss, etc.

Colon Cancer Symptom: The symptoms vary in severity and may start slowly or suddenly. Symptoms include: abdominal pain and cramping that usually disappears after a bowel movement, abdominal sounds, weight loss, diarrhea, blood or pus in the stools, and rectal pain. If you had ulcerative colitis as an antecedent condition, you may experience joint and skin symptoms, fever, and other exa intestinal manifestations.