Our DNA tests collects DNA from your cheek cells and saliva. The DNA in these cells will remain unchanged regardless of medical conditions in other parts of the body, so the results from these cells will remain the same regardless of your sickness. Similarly, medications that you take will not change your DNA test results. Do take note, however, to avoid ulcers in your mouth when collecting your DNA sample using our cheek swab.
One exception to this is if you are the recipient of a bone marrow transplant or if you have had a recent blood transfusion (7 days before providing your DNA sample). If you are a marrow or blood recipient, your white blood cells will contain the DNA of your donor, these can be found in small amounts in your saliva and accumulate on the swab. The DNA from these cells will not match with your own, and this can result in analysis failure. We therefore do not recommend taking the test if you have received a bone marrow transplant or recent blood transfusion.
In addition, if you are applying a cream or ointment onto the inside of the mouth (gum, teeth, etc), we highly advise you to provide your sample when you are no longer using the cream or ointment.