Avulsion fractures of the navicular bone are relatively less serious among fractures. It is usually caused by the tendon or ligament at the bone being avulsed together, and the displacement is usually small. Most patients can be cured by conservative treatment. For safety reasons, it is recommended to go to the orthopedic department of a regular tertiary hospital for a CT examination to see the fracture dislocation and to treat the fracture symptomatically after a clear diagnosis.1. Hand navicular fractures should be avoided by carrying heavy objects and reducing the activities of the affected limb.2. Foot navicular fractures should be avoided by strenuous exercise, not running and jumping, and not participating in sports. Whether it is a hand navicular fracture or a foot navicular fracture, you must pay attention to rest and not overexert yourself. Regulate the diet to eat more high-protein food, drink more water, eat a nutritious diet, eat more food containing high calcium is conducive to physical recovery.