You can have a look. Is it artificial? If the injury is serious, you can contact the kindergarten director directly and get the surveillance video, because like a regular kindergarten, in order to ensure the safety of children and reassure parents, you will install surveillance, and then you can see the situation of children. If it wasn't man-made, the injury was not serious. It may have been met by a child in a fight. Why not just ask the teacher about the child's injury? He must know about it, too. If there is such a teacher, you must report it in time, and you don't have to worry about the teacher giving your child a hard time in the future. There are still fewer teachers who have no ethics.