Children’s knee dislocation a moment to recover, may be knee dysplasia, knee joint contusion, ligament laxity and other causes. 1. Knee dysplasia: heredity can lead to knee dysplasia, which can be manifested as a knee dislocation a moment later recovery, children’s knee dislocation a moment later recovery may be caused by knee dysplasia. 2. Knee contusion: the child’s knee joint is injured due to sports or certain factors, which may cause the child’s joint to be misaligned and cause the above symptoms. 3. Ligament laxity: the lack of sufficient calcium in the child’s body will affect the normal growth and development of the child, which in turn affects the development of ligaments, resulting in ligament laxity, which in turn is likely to make the child appear to be dislocated knee a moment after the recovery of the phenomenon. Children’s knee dislocation a moment to recover, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.