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Home Knowledge Center Wellness Library Colorectal Cancer Genetic Testing

Colorectal Cancer Genetic Testing

Overview

Colorectal cancer genetic testing can tell you if you carry rare changed, or mutated, genes that can cause colorectal cancer. Although most people who get colorectal cancer do not have one of these mutated genes, having certain gene changes can increase your chance of getting colorectal cancer.

Your doctor may suggest genetic testing if your family history or your personal medical history puts you at an increased risk for colorectal cancer. If you have an increased risk, your doctor may also recommend you start cancer screening earlier than someone who has an average risk of cancer.

Accuracy of the Test

Accuracy of the Test

Although these genetic tests are highly reliable, no test is 100% accurate. Depending on the type of test you have, you can find out if you have certain inherited gene changes. These changes may be related to some of the syndromes that increase your risk for colorectal cancer, such as Lynch syndrome. But the tests cannot tell you when or if you will develop colorectal cancer.

 Deciding About Testing

Deciding About Testing

The decision to have genetic testing for colorectal cancer risk is personal. You may have emotional, medical, financial, and family reasons for taking or not taking the test. You might want to be tested so that if you test positive, you can be proactive with cancer screening and take measures to protect your health and that of your family. Or you may be concerned that if you test positive, you may have a hard time getting life insurance, long-term care insurance, or disability insurance.

Genetic counseling can help you understand the risks and benefits of testing and help you make a well-informed decision.

Learn more

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

To learn more about Ignite Healthwise, LLC, visit webmdignite.com.

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