The opening time of ankle adhesion varies according to the duration of its occurrence, as follows: 1. Recent occurrence: If the ankle adhesion occurs in the near future, such as the ankle adhesion after ankle surgery, generally after the surgery, we should carry out active functional training, and the adhesion will be opened for about one month, that is to say, when we carry out the functional exercise for one month, we can make the mobility of the joint basically reach the normal standard. 2. Long-term: If the ankle joint belongs to long-term, chronic adhesion, belongs to the old injury, it is impossible to open the adhesion of the ankle joint through functional exercise, because the local scar contracture band has been formed. In this case, surgical treatment is needed to remove the adhesion band completely, loosen the local stiffness of the tissue, and then carry out active functional exercise after the operation, generally 1-3 months after the operation to restore the normal function of the ankle joint.