1. Incorrect medical records: If more than one nurse signs the same operation, the medical records may be inaccurate, and it is not clear who is responsible, so it is difficult to investigate the responsibility for problems.
2. Nurses' professional ethics: The signing of the same operation by multiple nurses may mean that nurses cover up for each other or help each other to sign, which violates nurses' professional ethics and professional conduct.
3. There are security risks: If more than one nurse signs the same operation, it may lead to medical security risks, such as repeated use of medical equipment and wrong patient information.