Genetic
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What Genetic Means in Everyday Medical Language
Genetic refers to anything related to genes, which are sections of DNA inside your cells. Genes carry instructions that tell your body how to grow, develop, and function. These instructions are passed down from parents to children. Sometimes, changes or mutations in genes can affect how well they work. Some gene changes increase the risk of diseases, including certain cancers.
Why Genetic Changes Matter in Cancer Care
Cancer is caused by changes in genes that control how cells grow and divide. Some of these changes happen randomly or because of environmental exposures, while others are inherited from a parent. Inherited gene changes can raise the risk of developing cancer, such as breast or ovarian cancer. Knowing about these changes can help doctors recommend earlier or more frequent screening, preventive measures, or specific treatments.
What Patients Might See or Hear About Genetic Testing
Your healthcare provider may suggest genetic testing if you have a personal or family history of certain cancers. This testing usually involves a blood or saliva sample to look for inherited gene changes that increase cancer risk. Genetic testing can help families understand their risks and make informed decisions about screening and treatment. However, not everyone needs genetic testing, and your provider can help decide if it’s appropriate for you.
How Genetic Testing Is Different From Other Tests
Genetic testing for inherited cancer risk is different from tests that look at gene changes in a tumor (called biomarker or molecular profiling). Tumor tests help guide treatment for an existing cancer, while inherited genetic tests look for gene changes you were born with that affect your overall cancer risk. Sometimes, if a tumor test suggests an inherited change, you may need a separate genetic test to confirm it.
Common Questions to Ask Your Care Team
If genetic testing is recommended, you might ask: What gene changes are you testing for? How will the results affect my care? What are the benefits and risks of testing? How will my privacy be protected? What does a positive or negative result mean for me and my family? Understanding these points can help you make informed choices.
Understanding the Limits and Next Steps
Having a genetic change that increases cancer risk does not mean you will definitely get cancer, only that your risk is higher. Also, many cancers happen without inherited gene changes. Genetic testing is one tool among many to help manage health. This information is educational and not a substitute for personalized medical advice. If you see the term genetic in your medical records or discussions, ask your care team what it means for your specific situation.
Moving Forward With Genetic Information
If you think genetic testing might be helpful, talk with your healthcare provider or a genetic counselor. They can review your family and personal history, explain testing options, and support you through the process. Genetic information can empower you and your family to make choices about cancer screening, prevention, and treatment tailored to your risks.
Sources
Public source information used for this glossary entry includes: