What are the distinguishing qualities of a broken finger?

Fractured finger . Pain swelling deformity stiffness. Much depends upon whether the fracture is non displaced vs displaced extrasrticuksr vs intrarticular anguksted or rotated Simple small avulsion fractures are often be able to be treated without significant immobilization. But a displaced rotated fracture more likely needs surgery.
Broken finger. Pain worse with movement and pressure, swelling, bruising, distortion of the anatomy, loss of function and possible traumatic splitting open of the skin.
Pain, pain, pain. Then deformity, instability, swelling, clicking, scissoromg of fingers with grip, impaired function, liss of grip strength, ruptured tendons, loss of joint motion and many more problems with nonunion or malunion.