Objective: When unwanted symptoms and results are seen after injection, people apply to judicial action with the claim that their injections are not applied correctly. With this study, it is aimed to examine what the courts pay attention when distinguishing complications/medical errors in cases filed due to injection neuropathy and how the legal process progresses through the route followed. Material and Methods: The appeals decisions of the Court of Cassasiton in 41 cases involving alleged malpractice after injection neuropathy between 2012 and 2020, which can be accessed via the official website of the Republic of Turkey Court of Cassasiton, have been examined. The medical data of the injection application and the subsequent legal process were evaluated. Results: The vast majority of the cases opened are in the nature of negligent injury. When the decisions made by the courts of first degree were examined, it was seen that 40 of them ended in acquittal and 1 of them resulted in convictions about the health personnel who performed the injection. The Court of Cassasiton decided to approve 26 of the decisions made by the courts of first instance and quash the decision in 15 of them. The main reasons for the deterioration of the decisions are the lack of informed consent documents in the file and the insufficient content of the expert reports received. Conclusion: In order to prevent the prolongation of the trial processes, the experts of the relevant departments, especially forensic medicine, have a great job in preparing the expert reports in a detailed manner and without leaving any question marks, as requested by the Court of Cassasiton.