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Colorectal Cancer

What is colorectal cancer?

Colorectal cancer starts in the large intestine (colon) or rectum.

What increases my risk for colorectal cancer?

  • Diseases of the colon, such as polyps (small lumps of tissue) or ulcerative colitis

  • A family history of colon cancer

  • Foods that are high in fat, or high amounts of red meat, such as beef

  • Foods that are low in fiber, or not enough fruits and vegetables

  • Lack of physical activity

  • Cigarette smoking or heavy alcohol use

  • Medical conditions such as diabetes or obesity

  • Exposure to chemicals, such as asbestos

What are the signs and symptoms of colorectal cancer?

  • Bloody or black bowel movements

  • Abdominal pain or cramps, or a feeling of fullness

  • Frequent fatigue or weakness

  • Diarrhea or constipation

  • Rectal pain

  • Unexplained weight loss

How is colorectal cancer diagnosed?

  • A bowel movement sample may be tested for blood.

  • An ultrasound or CT may show where the tumor is located, or if the cancer has spread. You may be given contrast liquid to help the tumor show up better. Tell the healthcare provider if you have ever had an allergic reaction to contrast liquid.

  • Barium enema: A barium enema is an x-ray of the colon. A tube is put into your anus, and a liquid called barium is put through the tube. Barium is used so that caregivers can see your colon better on the x-ray film.

  • Colonoscopy: A colonoscopy is a test that is done to look at your colon. A tube with a light on the end will be put into your anus, and then moved forward into your colon. Your healthcare provider may take tissue samples during the colonoscopy to be tested for cancer .

How is colorectal cancer treated?

  • Surgery may be needed to remove part of your colon, rectum, or lymph nodes. This may help stop the cancer from spreading.

  • Targeted therapy is medicine used to target specific cancer cells and kill them.

  • Chemotherapy medicine is used to kill cancer cells. Chemotherapy may also be used to shrink the tumor or lymph nodes before surgery. Once the tumor is smaller, surgery can be done to remove the cancer.

  • Radiation therapy is used to kill cancer cells with x-rays or gamma rays. Radiation may be given after surgery to kill cancer cells that were not removed. It may be given alone or with chemotherapy.

What can I do to prevent or manage colorectal cancer?

  • Get screened as directed. Your healthcare provider may want you to have a yearly colonoscopy to check for colorectal cancer. Screening is recommended for all men and women older than 50 years. You may need to get screened earlier if you have colon disease or a family history of colorectal cancer.

  • Do not smoke. Smoking increases your risk for new or returning cancer. Smoking can also delay healing after treatment. Ask your healthcare provider for information if you currently smoke and need help quitting.

  • Limit or do not drink alcohol as directed. Men should limit alcohol to 2 drinks per day. Women should limit alcohol to 1 drink per day. A drink of alcohol is 12 ounces of beer, 5 ounces of wine, or 1½ ounces of liquor.

  • Drink liquids as directed. Ask how much liquid to drink each day and which liquids are best for you. If you have nausea or diarrhea from cancer treatment, extra liquids may help decrease your risk for dehydration.

  • Eat healthy foods. Healthy foods include fruits, vegetables, whole-grain breads, low-fat dairy products, beans, lean meats, and fish. You may need to change what you eat during treatment. Do not eat foods or drink liquids that cause gas, such as cabbage, beans, onions, or soda. A nutritionist may help to plan the best meals and snacks for you.

  • Exercise as directed. Ask about the best exercise plan for you. Exercise may improve your energy levels and appetite.

Call 911 for any of the following:

  • Your arm or leg feels warm, tender, and painful. It may look swollen and red.

  • You have chest pain when you take a deep breath or cough.

  • You suddenly feel lightheaded and short of breath.

  • You cough up blood.

When should I contact my healthcare provider?

  • You have a fever.

  • You cannot control your diarrhea or constipation.

  • You vomit multiple times and cannot keep any food or liquids down.

  • Your pain is worse or does not go away after you take your pain medicine.

  • You see blood in your bowel movements.

  • You have questions or concerns about your condition or care.

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your caregivers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

© 2014 Truven Health Analytics Inc. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. All illustrations and images included in CareNotes® are the copyrighted property of A.D.A.M., Inc. or Truven Health Analytics.

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