Swelling and pressure pain in the wrist is a sign of a fracture of the lower end of the radius. It is mostly caused by indirect violence, when the hand lands during a fall and the violence is transmitted upward, which results in a fracture of the lower end of the radius. It is manifested by swelling and pressure pain in the wrist, and limited movement of the hand and wrist. Examination of wrist swelling and pressure pain: A fracture of the lower end of the radius is a fracture within 3 cm from the articular surface of the lower end of the radius, which is the junction of cancellous and dense bone and is an anatomical weak point that is easily fractured once it is subjected to external force. The articular surface of the lower radius is concave from the dorsal to the palmar side and from the radial to the ulnar side, forming a palmar inclination (10 degrees-15 degrees) and an ulnar inclination (20 degrees-25 degrees) respectively. The ulnar side of the radial styloid process and the radial side of the ulnar tuberosity form the ulnar radial joint, which, together with the superior ulnar radial joint, forms the anatomical basis of the rotational activity of the forearm. The stem is located 1-1.5 cm far from the plane of the ulna, and the lower end of the ulna and radius together form the proximal column of the carpal bone to form the carpal joint. The main manifestations are swelling and pressure pain in the wrist, and limited movement of the hand and wrist. X-ray examination: X-rays can clearly show the fracture and its type, the distal end of the radius fracture is displaced to the dorsal radial side in the extension type, the angle of inclination of the joint surface on the palmar and ulnar side becomes smaller, disappears, or even reverse inclination, the distal fracture end of the radius is embedded with the proximal side, some combined with ulnar stem fracture and separation of the lower ulnar radial joint, the distal end of the radius is displaced to the palmar side in the flexion type fracture, in elderly patients with minor trauma, bone density examination should be performed to In elderly patients with minor trauma, bone mineral density examination should be performed to understand the fracture laxity. The fracture is painful and swollen, with a new deformed posture, i.e. a “silver fork” deformity in the lateral view and a “spear-like” deformity in the frontal view, with significant local pressure pain and impaired wrist joint movement. The fracture is displaced distally to the radial and dorsal sides and proximally to the palmar side, thus showing the typical deformity signs, and the lower ulnar radial joint dislocation can be notified. The fracture may be associated with a palmar and radial displacement of the distal end of the fracture, which is the opposite of the extension fracture.