Colorectal Cancer

Medically reviewed by Drugs.com. Last updated on May 6, 2024.

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AMBULATORY CARE:

Colorectal cancer

starts in the large intestine (colon) or rectum. The cancer may begin as a small polyp (lump of tissue) that grows inside your intestine.

Common symptoms include the following:

• 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

Call your local emergency number (911 in the US) for any of the following:

• You suddenly feel lightheaded and short of breath.
• You have chest pain when you take a deep breath or cough.
• You cough up blood.

Seek care immediately if:

• Your arm or leg feels warm, tender, and painful. It may look swollen and red.
• You vomit multiple times and cannot keep any food or liquids down.
• You see blood in your bowel movements.

Call your doctor or oncologist if:

• You have a fever.
• You cannot control your diarrhea or constipation.
• Your pain is worse or does not go away after you take your pain medicine.
• You have questions or concerns about your condition or care.

Treatment:

Your healthcare provider can help you understand which treatments may be most effective, based on the cancer stage. You may need 1 or more of the following:

• Chemotherapy (chemo) medicine is used to kill cancer cells. Chemo may be used to shrink the tumor or lymph nodes before surgery. Chemo may also be used after surgery to decrease the risk that cancer will come back. Chemo may be given with other treatment. Your provider can help you understand the benefits and risks, and if added chemo is right for you.
• Radiation therapy is used to kill cancer cells with x-rays or gamma rays. Radiation may be given either before or after surgery to kill cancer cells. It may be given alone or with chemo.
• Targeted therapy is medicine used to target specific cancer cells and kill them.
• Surgery may be used to remove the tumor. Surgery may be needed to remove part of your colon, rectum, or lymph nodes. This may help stop the cancer from spreading. Surgery may also be used to remove cancer cells that have spread to your liver or lung.

Treatment options

The following list of medications are related to or used in the treatment of this condition.

• Xeloda
• Avastin
• Keytruda
• Betaseron
• Opdivo

View more treatment options

Get screened as directed:

Screening means you are checked for colorectal cancer, even if you do not have signs or symptoms. Screening is recommended starting at age 50 and continuing to age 75 if you are at average risk. Your healthcare provider may suggest screening starting at age 45. Screening may start before you are 45 or continue after you are 75 if your risk is high. Your provider will tell you how often to get screened. Timing depends on the type of screening and if polyps or other problems were found. Timing also depends on your age and if you are at increased risk for cancer. Screening may be recommended every 1, 2, 5, or 10 years.

Manage or prevent colorectal cancer:

• Do not smoke. Nicotine can damage blood vessels and make it hard to manage colorectal cancer. Smoking also increases your risk for new or returning cancer and delays healing after treatment. Do not use e-cigarettes or smokeless tobacco in place of cigarettes or to help you quit. They still contain nicotine. 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 dietitian may help to plan the best meals and snacks for you.
• Be physically active as directed. Ask about the best exercise plan for you. Physical activity, such as exercise, may improve your energy levels and appetite.

Follow up with your doctor or oncologist as directed:

You will need to see your oncologist for ongoing treatment and follow-up. Write down your questions so you remember to ask them during your visits.

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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.

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