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.
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.
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.

Related Questions

How can colon cancer affect the body?

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.

What does colon cancer do to my body?

Many things. Untreated colon cancer can cause bleeding and anemia, weight loss, diarrhea or constipoation or complete blockage of your bowels, pain, eventually metastatic to liver, lung and bone and ultimately death.
Depends... I like dr. Kaplan's answer but want to add that colon cancer may be silent until it's too late. Screening is very important therefore.

How do I know if colon cancer has spread in my body?

See a doctor. Numerous test including ct scans and pet scans can determine if there is any evidence for metastatic disease. See your oncologist for the best advice.
Difficult to know. You may have pain in the belly or weight loss. Usually we know about cancer spread by looking at the lymph nodes removed with surgery. We also look at ct scans before surgery to examine the liver and the lungs. Ct scans and sometimes a blood test for CEA can help look for spread after surgery for colon cancer.

Could you need a body cast making for radiotherapy on colon cancer?

Colon cancer. Is rarely if ever treated with radiation as opposed to rectal cancer which often is treated with radiation/chemo and surgery. Not sure what you mean by a "body cast" but to my knowledge one is not used.

Hi am wanting to know if anyone has colon cancer when will the symptoms start showing up and will start affecting the body. Is colon cancer treatable!

It is treatable. .. At all stages, though obviously more difficult the wide spread the disease. But colon can may not have any symptoms early on in the disease. That's why we do screening colonoscopies to help pick up concerning lesions as early as possible. Otherwise early symptoms are usually hidden blood in your stool then obvious blood. Obstruction can happen later on too.

Can colon cancer effect any other body systems besides the digestive system?

No if it is. Localized to colon. But if it spreads to liver, lung, bone, or brain, it can cause problems in these organ systems.

How do I know if I have stonach or colon cancer. My stomach feels very odd. Little diarea and nausa. I have these llumps all over my body for long tim?

See a doctor. Best to see a doctor for a physical examination & possible blood tests. Longstanding "lumps" on the body may likely just be benign fatty lipomas. Unable to tell if a person could have a cancer without a physical examination, maybe endoscopy & colonoscopy. But you also seem quite young to worry about cancers.
See a doctor. If you are having stomach complaints then seeing a doctor, being examined, and possibly having further testing or endoscopy can accurately determine if you have cancer or are at higher risk for stomach or colon cancer. Both stomach and colon cancer more commonly occur later in life. Gi bleeding, pain, anemia, vomiting, changes in stool character are some symptoms that may be caused by cancer.

My boyfriend has colon cancer and his body is so weak to a point were he can sleep all day and still feels so tired and he's been bleeding profusely e?

See answer. Very sorry to hear this. I wasn't sure what question you were asking? Is he in hospice? If so contact them immediately for advice. Otherwise, If he is bleeding profusely he should be transported to an ER for evaluation.