After the leg fracture cast, need to pay attention to the early 3-5 days, it is recommended to elevate the leg. Because after the fracture, the early 3-5 days is the peak period of edema, after elevation, it is conducive to the swelling of the foot. In addition, plaster immobilization, pay attention to the tightness. If it is too tight, it will affect blood circulation and lead to ischemic muscle or nerve injury. If it is too loose, the immobilization will be lost and the fracture site will be displaced. Plaster immobilization, but also pay attention to the possibility of the emergence of pressure sores, if you feel discomfort and pain in the leg, you need to go to the hospital for examination to prevent the emergence of pressure sores in the plaster. In addition, plaster immobilization, if there is numbness in the leg, there is the possibility of plaster injury to the nerve, also need to go to the hospital for examination. Generally about 1 week to 10 days after plaster immobilization, the swelling of the leg will subside and the plaster will loosen, so it is recommended to go to the hospital for rechecking and giving proper immobilization to prevent displacement of the fracture. Generally after plaster immobilization, every 1-2 weeks, it is recommended to go to the hospital for X-ray examination to check the healing of the fracture and whether there is any change in the position of the fracture.