After a foot fracture, the process of swelling reduction is in two stages: the first stage is 5-7 days after the injury. This is due to the fact that after surgery or external fixation in a cast, the local swelling is particularly pronounced due to the gradual formation of blood stasis and inflammatory edema in the injured location. Generally, after elevation of the lower extremity and application of medication to promote blood circulation and eliminate blood stasis, reduce swelling and pain, the swelling will be significantly eliminated in 5-7 days. The second process is during the process of going down to the ground, usually about 4-6 weeks after the cast or surgery, when the fracture has reached the initial clinical healing and the joint movement is still functional, it is possible to go down to the ground for weight bearing. This is due to the damage to small blood vessels after the local injury, which will lead to a decrease in venous return; however, at this time, the collateral circulation has not been fully established, so the swelling is more obvious. After the swelling appears, you can continue to elevate the foot to reduce the local swelling by gravity, and after the swelling subsides, you can move down to the ground again.