Our wrist is a very flexible part of our body, our left hand and right hand can move very flexibly through the wrist, then sometimes our wrist may have some problems, such as our joint swelling and pain, our wrist happened swelling and pressure pain, then what kind of factors are caused by it? Some of us also feel very confused. So next I will come to introduce the specific reasons why we have this problem. Causes of wrist swelling and pressure pain: This disease is mostly caused by indirect violence, when falling, the hand lands, the violence is transmitted upward, thus the fracture of the lower end of the radius occurs. It manifests as swelling and significant pressure pain in the wrist, and limited movement of the hand and wrist. The majority of patients with distal radius fractures are injured by dorsal wrist extension, and most of their axial forces are transmitted to the distal radius via the central and lateral columns, through the navicular and lunar bones. Since the capitate bone is located between the navicular and lunar bones, the forces are mainly concentrated on the navicular and lunar ligaments, which easily cause navicular and lunar ligament injury and navicular and lunar separation, and the articular surface of the distal radius is often crushed. Because palmar flexion is not conducive to the repair of dorsal structures, ulnar deviation increases the separation of navicular and lunar, and strains the brachioradialis muscle, easily causing radial displacement, which is not conducive to improving the instability of the wrist joint. It is the most common, mostly caused by indirect violence, and was described in detail by A. Colles in 1814. The fracture is caused by a fall with the wrist in dorsal extension and forearm rotation, with the palm of the hand on the ground, and the violence is concentrated on the cancellous bone of the distal radius. The distal end of the fracture is displaced dorsally and radially. In children, the epiphysis may be separated; in the elderly, due to osteoporosis, the fracture can be caused by a slight external force and is often a comminuted fracture, with the fracture end shortened due to impaction. Comminuted fractures may involve the articular surface or combine with ulnar stem avulsion fractures and lower ulnar radial dislocation. When the lower ulnar radial dorsal ligament is ruptured, a dorsal subluxation of the ulnar head will occur during the anterior rotation process; when the lower ulnar radial palmar ligament is ruptured, a palmar subluxation of the ulnar head will occur during the posterior rotation process, without a tear of the triangular fibrocartilage disc or a fracture of the ulnar styloid process, a complete ulnar head dislocation is not possible. In other words, when the lower ulnar radial joint is completely dislocated, the rupture of the triangular fibrocartilage disc or the fracture of the ulnar styloid process must be one of the two, the tear of the triangular fibrocartilage disc needs to be in the central part, transverse or long, and the fracture of the ulnar styloid process often occurs at the base, which is caused by the pulling of the triangular fibrocartilage disc and the ulnar collateral ligament of the wrist.