[D] Labelling strategy

I am an Orthopedic Surgeon, I am making a computer assisted diagnosis software for fracture recognition as a fun side project.
I am using bounding boxes for labelling the fractures. I am using Detectron2 with Resnet backbone. When I traing my model it discards all images without a Label (these are valuable images with no fractures). How should I go about this? Should I just label the whole bone with a bounding box labelled no fracture? Or just eventually after …

computer detectron2 diagnosis fun images labelling machinelearning making project recognition resnet software strategy