If a simple fracture of the 12th rib occurs, it is usually not very serious, and if it is only a crack fracture, it will only require local recuperation and external immobilization with a chest strap for about 4-6 weeks to heal. However, if the fracture is very obviously dislocated, it may be necessary to operate to reset the fracture and do internal fixation, which is relatively more serious, but will not lead to life-threatening situations. In addition, if the 12th rib is fractured and the internal organs are damaged, the right side may cause liver rupture and bleeding, and the left side may cause spleen rupture or bleeding from the ruptured blood vessel, which may lead to hemorrhagic shock and life-threatening condition if the amount of bleeding is large.