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  • Writer's pictureRadha Pathak

Genetic Testing and Breast Cancer Risk: Who Should Get Tested and What to Expect

Genetic testing is a powerful tool that has revolutionized healthcare in recent years. Medical professionals have used it to find genetic changes that raise the chance of developing many diseases, including breast cancer. Genetic testing has become increasingly important as we continue to understand how heredity affects health and disease.

In this article, we'll explore the importance of genetic testing for breast cancer treatment. We'll delve into who should consider undergoing testing and what to expect from the process.

What is Genetic Testing?

Genetic testing is a medical procedure that analyzes your DNA to identify any changes or mutations that may increase your risk of developing certain diseases, such as breast cancer. This test examines specific genes associated with an increased likelihood of developing this type of cancer. The results from genetic tests can help healthcare providers determine if you're at higher risk for breast cancer and whether additional preventive measures like regular screenings or treatments such as chemotherapy or radiotherapy for breast cancer may be necessary. Who Should Get Tested? Let's dive into more detail about who should get tested for breast cancer risk:

  • Breast cancer in the family: You may be more likely to get the disease if you have a first-degree relative (such as your mother, sister, or daughter) diagnosed with breast cancer. In fact, compared to women without a family history, those who have a first-degree relative who has breast cancer are roughly twice as likely to have the disease themselves. Your risk may be even higher if you have multiple relatives with breast cancer or your relative was diagnosed young.



  • Personal History of Breast Cancer: You may have a higher chance of getting breast cancer again if you have already received a diagnosis. In actuality, breast cancer survivors are more likely to develop a second breast cancer in the same or a different breast. If you have a genetic mutation that raises your risk of getting a second case of breast cancer, genetic testing can help identify it.

  • Young Age at Diagnosis: A genetic mutation that raises the chance of developing breast cancer may be more likely to occur if you were diagnosed with breast cancer when you were young (before age 50). Genetic mutations are more likely to cause breast cancer in young women.

  • Multiple Family Members with Breast Cancer: If you have multiple family members with breast cancer, mainly if they are first-degree relatives, your risk of developing breast cancer may be higher. This is because genetic mutations that increase the risk of breast cancer can be inherited from both sides of the family.

  • Personal History of Ovarian Cancer: Women diagnosed with ovarian cancer may be at an increased risk of developing breast cancer. This is because genetic mutations that increase the risk of ovarian cancer can also increase the risk of breast cancer.

What to Expect?

Let's say you fit into one of the descriptions above. If so, you should consult a genetic counsellor before getting a genetic test. The genetic counsellor will go through your medical background and family history of cancer, talk to you about the advantages and restrictions of genetic testing, and assist you in comprehending your test results.

A blood or saliva sample is necessary for the genetic testing procedure. The sample is then sent to a lab for analysis, which can take several weeks. When the results are ready, your genetic counsellor will meet with you to go over them.

Your genetic counsellor may advise further screenings or preventative actions, such as increased surveillance or prophylactic surgery if the test results reveal a genetic mutation that raises your chance of getting breast cancer.

The Final Words

Breast cancer genetic testing can also help guide therapy decisions. Patients who test positive for certain genetic mutations, for instance, may benefit from therapies specifically targeted to them or more aggressive options, like radiotherapy for breast cancer.

Early detection of these mutations enables patients to collaborate with their healthcare team to create a thorough treatment plan that considers their genetic profile. Overall, genetic testing for breast cancer treatment is an important tool in the battle against this illness and can provide helpful information for both prevention and treatment.

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