Mom isn't accepting to do xray for hand. she say i'm getting better it is swollen how can i know if it's fracture?

Missing information: It would be easier to comment if you described the actual injury/symptoms in more detail. However. A bone fracture typically triggers bleeding which will show up as a bruise at the site. It will also alter basic function of the joints/full flexing or extension of fingers. If you can do all these functions (pain or not) a fracture is less likely. But only an exam or x-ray would be sure.