After a child has a fracture, it usually needs to be fixed in a cast to play the role of fixation and maintenance, after the cast, what issues need to be noted? 1. Elevate the replacement limb. Elevate the limb with a soft pillow or bedding to facilitate venous and lymphatic reflux and reduce limb swelling. Exercise finger and toe activities, and quadriceps training should be performed on the lower limbs to prevent excessive muscle atrophy. 2. Because the limb may continue to swell in the cast and make the cast too tight, the doctor will expose the fingers or toes when playing the limb cast to facilitate observation. You should always observe the exposed finger or toe end, pay attention to its color and temperature, and also compare it with the healthy side of the limb. If you find that the end of the fingers and toes purple color, pale, lower temperature or can not automatically move, skin sensation, numbness, others will cause severe pain when the fingers and toes straight, indicating the emergence of limb blood flow disorders, you need to try to remove the plaster or timely to the hospital to ask the doctor to deal with, if not handled in a timely manner, can occur in the limb tissue ischemic necrosis. 3, after the plaster fixed patient whistling pain and unbearable, generally due to plaster compression, once this phenomenon should be in the painful parts of the window or replace the plaster. 4, cold season should pay attention to the warmth of the limb in the cast to prevent frostbite. In summer to prevent high ambient temperature, increased sweating will lead to skin eczema and prickly heat within the cast, and serious skin infection can occur secondary to it. 5, pay attention to keep the plaster neat and clean, do not let the plaster be contaminated by feces and urine, and do not get wet with water, turn over or change position to protect the plaster to avoid fracture. 6.Do not insert hard objects such as coins and buttons into the gap of the cast to avoid pressure sores on the local skin. 7.For a period of time after the cast, especially in hot summer, children often complain of itchy skin inside the cast, try not to scratch with chopsticks, etc., so as not to cut the skin and cause infection. If necessary, consult the doctor if the cast can be replaced and the skin cleaned at the same time. 8.After the cast is fixed for a long time, skin sweat hair growth can often occur, which will usually slowly subside and return to normal. 9.The cast of upper limb fracture usually needs about 4 weeks to be fixed, and the lower limb needs about 6 weeks. The cast can be removed only after the fracture is clinically healed. After removal, effective rehabilitation training of joint range of motion and muscle strength will be provided first, and normal activities will be resumed in phases.