If you have received a bone marrow transplant for the treatment of a condition or disease, we cannot recommend that you use the 23andMe® Personal Genome Service.
The saliva sample required to receive the 23andMe Personal Genome Service includes DNA from multiple cell sources, including epithelial cells from your cheeks and mouth and white blood cells from your saliva. As a bone marrow recipient, your blood cells will contain the DNA from your marrow donor, while your epithelial cells contain your own DNA. The combination of DNA sources frequently results in analysis failure. In the event that the analysis was successful, it still would be unclear whether the results were based on DNA from you or from your donor.