If your family members are interested in genetic testing for hereditary cancer, we recommend that they talk to their doctor and/or a genetic counselor about whether testing is right for them. To help a doctor determine whether your family member may have an increased risk of hereditary cancer, it is helpful to share:
- Information about the family history of cancer, including details about which family members were diagnosed, which type of cancer they had, and how old they were when diagnosed
- Test results from other family members who have already been tested for hereditary cancer
If genetic testing is recommended, the doctor can obtain a DNA sample from your family member and send it to Sema4 for testing.