[Analysis of Changing the Original Test Result after Retesting in National Medical Device Sampling and Testing from 2013 to 2016].

The types and the reasons of changing the original test result after retesting in national medical device sampling and testing from 2013 to 2016, are summarized and analyzed. Firstly, collecting data of "standards not complied" and retesting. Then, giving specific examples when summarizing five types of changing the original test result after retesting. Meanwhile, analyzing the relevant reasons, discovering the deep problems. Finally, giving suggestions for the above problems.