The enlargement of the ankle 2 years after the heel fracture may be related to soft tissue proliferation, bone scab proliferation, deformity healing and other factors. 1. Soft tissue hyperplasia: connective tissue hyperplasia may occur around the incision after surgery, and the ankle joint may also be caused by frequent activities or repeated friction of shoes, resulting in scarring of the incision, leading to the phenomenon of ankle enlargement. 2. Bone scab: During the recovery process of heel fracture, the original bone scab will be formed, and the local periosteum will proliferate, which may cause the original bone scab to exceed the original bone shape, resulting in the phenomenon of ankle enlargement, and the excess bone scab will be absorbed slowly with the passage of time. 3. Deformity healing: After heel fracture surgery, joint healing deformity may occur in the process of healing, which may lead to the phenomenon of ankle enlargement, and accompanied by local pain, swelling and other symptoms. If the ankle becomes bigger 2 years after the heel fracture surgery, it is recommended that the patient go to the hospital in time for the relevant examination, and under the guidance of the doctor to carry out the correct targeted treatment, so as not to cause adverse effects.