Baking is not recommended 1-2 days after the fracture, but it can be considered 2-3 days after the fracture or in the middle and late stages when the local swelling and pain are completely stable. The early stage of fracture is due to a lot of local fractures or rupture and bleeding of subcutaneous capillaries, which leads to significant local swelling and pain. If baking promotes local blood circulation at this time, the local bleeding capillaries will re-dilate and the bleeding will become more severe and lead to more serious local swelling. If the swelling continues to increase, osteo-fascial compartment syndrome may develop. In the middle and late stages of fracture, baking electricity can promote local blood circulation, accelerate the local swelling and pain, and also promote blood circulation at the fracture end, which can appropriately accelerate fracture healing.