1. If there is no skin damage, don't worry about leaving scars, but please make sure your bones are all right. The congestion caused by skin and soft tissue contusion will disappear in a short time.

If you are not familiar with the equipment, the coach should have a process of telling how to use it. It depends on whether you take the initiative to ask the patrol staff, because it is impossible to judge whether you can use the equipment. If your injury is not serious, I suggest the gym apologize. If the injury is serious, it is another matter.