1. According to the cause of dislocation, it may be classified into traumatic dislocation, pathologic dislocation and habitual dislocation.

2. According to the degree of dislocation, it may be classified into partial dislocation (or semiluxation) and complete dislocation.

3. According to the direction of dislocation, it may be classified into anterior dislocation, posterior dislocation, superior dislocation, inferior dislocation and central dislocation.

4. According to the time of dislocation, it may be classified into fresh dislocation whose duration is within 2 to 3 weeks and old dislocation that has not been set yet for more than 2 to 3 weeks. The articular dislocation that relapses repeatedly is called habitual dislocation.

5. According to whether there is wound opening to the outside in the dislocated joint, it may be classified into closed dislocation and open dislocation.