Is the three-month fetal paternity test accurate? With the development of modern medical technology, fetal paternity testing has become a feasible way to determine the genetic relationship of the fetus by detecting fetal DNA. However, many people have concerns about the accuracy of this technology. The following details the fetal DNA collection methods and precautions, the accuracy of the technology itself, the interpretation of test results, and the factors affecting errors. Fetal DNA collection methods and precautions Fetal DNA collection is the most critical step in fetal paternity testing. Commonly used are non-invasive sampling methods, including amniocentesis