The difference between ankle dislocation and sprain is mainly the difference in symptoms. After sprain, bruising, swelling, pain and dysfunction will occur in the ankle joint, while after ankle dislocation, in addition to the above three symptoms, there will also be glenoid emptiness, elastic fixation, inversion or eversion deformity, as follows: 1, the so-called glenoid emptiness refers to the ankle point emptiness, under normal circumstances, the ankle joint is composed of the ankle point of tibiofibular bone lower end of the inner and outer ankle and the talus, and the talus is now subluxed! After the dislocation of talus, there is no bone in the ankle point, and it is empty when you touch it. 2, elastic fixation, the so-called elastic fixation is that after dislocation of ankle, the ankle joint will be inward or outward, and it will be inward or outward deformity, when you do outward or inward activities with your hand, there is a kind of spring-like feeling, that is, the inward part of the ankle joint will be rebounded back to the outward part of the ankle joint. Elastic fixation.3. After dislocation of the ankle, there will be inversion or eversion deformity.