Long-term bad finger contusion joint may be related to finger joint capsule injury, finger ligament rupture and finger fracture. 1. Finger joint capsule injury: the patient’s finger joint capsule has rupture when contusion, and there is no timely braking, so that the ruptured joint capsule is not repaired and healed for a long time. This leads to the phenomenon that causes the finger contusion joint to be bad for a long time. 2. Finger ligament rupture: finger joint ligament rupture in contusion, and not timely suture, the ligament also need to bend activities, will lead to obvious swelling, and the swelling is slow, resulting in finger contusion joint long-term bad phenomenon. 3. Finger phalangeal fracture: after the patient’s finger contusion, there may be intra-articular fracture and cartilage damage, no timely fixation, long time not get healed, will also lead to the patient’s finger contusion joints for a long time not good reasons. When the patient’s finger contusion joint is not good for a long time, should go to the regular hospital to find out the cause of the disease and active treatment, to avoid delaying the condition.