What is causing pain in a previously broken hand?

Hand fractures : Can heal often if treated but there are many structures in the hand that combine to give function. Adjacent joints may be slightly arthritiic and be inflamed, tendons and ligaments can be stiff or tight, skin can stay swollen, joints can be inflamed.Muscles can be weak from injury or disuse.Pain in some degree can be from even a slight subtle change in mechanics.Handtherapy can help at times.