Tailfinger pain after a minor fracture of the triangular bone of the wrist is considered to be nerve injury, adhesion after peripheral ligament injury, carpal tunnel syndrome, and so on. 1. Nerve injury: most of the fracture is caused by violent trauma, if the nerve is damaged in the process of trauma, it will cause the symptoms of tail finger pain. 2. Adhesion after peripheral ligament injury: slight fracture of the triangular bone of the wrist requires braking during the recovery period, and prolonged absence of exercise can cause stiffness and adhesion of the joint, so it can also cause symptoms of pain in the tail finger. 3. Carpal tunnel syndrome: slight fracture of the triangular bone of the wrist will make the posterior or lateral wall of the carpal tunnel convex to the lumen of the carpal tunnel to make the carpal tunnel narrowed, and carpal tunnel syndrome occurs, the main symptom is that there will be numbness or pain in the finger area, and the symptom is more obvious in the evening or in the morning. The pain in the tail finger after a slight fracture of the triangular bone of the wrist should go to the hospital for a detailed examination and symptomatic treatment for the cause of the disease.