Each variant in our Genetic Health Risk and Carrier Status Reports demonstrated >99% accuracy, and each variant also showed >99% reproducibility when tested under different laboratory conditions.

Can 23andMe be inaccurate?

The simple answer is that 23andMe tests are highly accurate. But, some users still get "inaccurate" results.

Is 23andMe ever wrong about relatives?

Are parent and sibling matches on 23andMe ever wrong? The predicted relationship on 23andMe is very accurate for very close relationships, such as parents and full siblings. In fact, 23andMe generally always predicts parent/child relationships correctly.