My baby mouse(who has fur, but hasn’t opened her eyes) got out of her cage last night and I didn’t realize it until I woke up. I found her and put her back, but she is bleeding from her genitals and anus. She seems okay, otherwise, and is behaving normally(she even bit me when I picked her up!). Why is this happening, and what can I do? She was out of the cage for about 12 hours, and had walked across the room before I found her. There was nothing on the floor that could have injured her.