If the fracture of the navicular bone of the hand is severely damaged by blood circulation, there will often be necrosis of the navicular bone fracture, which can have the following clinical manifestations: First, pain, there is obvious pain on the back of the radial side of the wrist, especially when knocking the dorsal side of the radial wrist or knocking the metacarpals and phalanges on the radial side, the pain is very significant, at this time, we should be highly suspicious of whether there is necrosis secondary to the fracture of the navicular bone. Secondly, the limitation of joint activities, due to the obvious pain after the fracture of navicular bone necrosis, often lead to obvious limitation of wrist joint activities. At this time, we have to carry out X-ray film and CT, nuclear magnetic examination to further confirm the diagnosis and treatment, if the diagnosis is necrosis after fracture of navicular bone, we have to actively carry out the early treatment, so as to avoid the sequelae of wrist joint pain and limitation of activities.