Why are certain SNPs missing?

While SelfDecode has a huge SNP depository, the amount of information you will be able to access will ultimately depend on what your DNA file includes. So if your file does not include a certain SNP then we are unable to provide that information to you. 

Sometimes we don't get an accurate enough read on a particular SNP when processing the test, so we don't report it to be safe as we don't want to report inaccurate information.