1. Lack of authenticity: in simulation drills, it is not possible to fully recreate a real postoperative bleeding situation, so participants may not be able to truly feel the stress and urgency of an emergency.
2. Lack of practical experience: Even in a simulation exercise, participants are unable to gain real-world practical experience in surgical operations and in dealing with postoperative bleeding. The complexity and risks of actual operations often go beyond the scope of the drill.
3. Lack of comprehensiveness: The management of postoperative bleeding involves multiple components, including detection, identification of the cause of bleeding, and taking appropriate measures. The drill may only cover some of these aspects, and is unable to fully grasp the entire treatment process.
4. Unrealistic psychological state of the participants: In the simulation exercise, the psychological state of the participants is different from the real situation. They may not have the real anxiety, tension and pressure to fully experience decision-making and action in an emergency.
5. Equipment and resource constraints: Exercises are limited by equipment and resources that do not provide a realistic on-site environment and the required medical equipment. This may affect participants' performance and ability to cope when dealing with postoperative bleeding.