If the ankle bone becomes larger after the foot has been broken, there may be several situations: 1. There may be localized osteophytes, which are often seen in cases where there is a previous old fracture, or where there is no fracture, but where there is localized abnormal calcium salt deposition due to aseptic inflammation, both of which can manifest as joint enlargement around the ankle joint. Because the soft tissue cover of the ankle joint itself is relatively thin, once such an enlargement is produced, it can be very clearly seen on the skin surface.2. Soft tissue scarring may exist, which is very common after recovery from ligament and joint capsule injuries. This is because the ankle joint looks swollen and hard to the touch, making the patient mistakenly think it is a bone enlargement. 3, may be the legacy of aseptic inflammation, there are many patients with ankle injuries after recovery, often find that the ankle joint on one side of the injury is much swollen compared to the other side, which is actually due to its internal This is actually due to the presence of sterile inflammation within it, which causes the accumulation of fluid and thus produces the swelling.