Fixation can be divided into two types: external fixation and internal fixation. External fixation refers to the use of plaster, traction, splints and other appliances to achieve fixation outside the body. Internal fixation refers to the surgical technique of using metal or biomaterials to maintain alignment and stability of the fracture after the fracture has been repositioned. If you are treated with internal fixation, it is not necessary to remove it, because with the improvement of internal fixation devices, it is generally difficult for the patient to feel them even if they are in the body, they cause neither pain nor special discomfort, and some people can carry them for life. However, depending on the situation, some patients may need to have the device removed, which means that you will need to return to the hospital after a period of recovery. This means that you will need to return to the hospital after a period of recovery, so you will be concerned about when these fixations will be removed. Usually this depends on whether the fracture has healed completely. If the fracture is completely healed, the internal fixation is no longer needed for support, and the movement of the joint adjacent to the fracture has been restored to the maximum extent possible, so that functional exercises will not be affected by the procedure to remove the internal fixation. The internal fixation can be removed at that time. To achieve this condition. It takes more than half a year for the fracture of the extremity. Therefore, the time to remove the fracture internal fixation is usually six months to -year after the surgery. But this is not absolute, in some children’s fractures such as supracondylar humerus fracture, healing is faster, generally 2 to 3 months after surgery can be removed from the internal fixation, in some special cases, such as fracture infection, instant fracture is not healed also need to remove the internal fixation, because once the wound is infected, the internal fixation will become a foreign body, will lead to the wound does not heal. 1.After putting on the cast, use a pillow to cushion the hand or foot: because of the fracture bleeding, swelling of the hand or foot will occur, causing blood disharmony, so cushioning the injured limb is beneficial to reduce the swelling. 2, the first few days to often pay attention to the situation of the fingers or toes: if there is severe pain in the injured limb and found that the fingers or toes purple cold, become inflexible, regardless of the day and night must immediately come to the hospital to see the emergency, do not delay the time or it will cause serious consequences, long-distance people can not get to the hospital in time when the plaster can be softened with warm water and tear off the plaster cloth layer by layer. 3.Expose the fingers or tissues outside the cast should always exercise activities. 4.After putting on the cast, if you feel a fixed pain at a certain point, you should come to the hospital for examination to avoid local skin ulceration by the cast. 5.The plaster just put on is moist and dry only after 3 days, do not collide or bend to avoid breakage. 6.After putting on the plaster, pay attention to personal hygiene to keep it clean, wrap the fingers or toes with cotton in winter to avoid frostbite, and prevent insects, fleas and foreign objects from falling into the plaster in summer. 7.If you find that the cast is loose (about 2-4 weeks after the fracture), you must come to the hospital for examination. 8.Do not remove the cast by yourself without reason.