Pediatric elbow dislocation is manifested as a slightly red and swollen elbow, not dare to extend and flex, the child can not express will appear to cry more than, summarized as local pain, swelling, deformity, functional limitations. 1. Local pain: after the injury, there will be local swelling, pain, the child may not be able to express, mostly crying, can be accompanied by localized swelling of the elbow joint. 2. Deformity: the elbow presents elbow inversion or eversion deformity. The elbow fossa is full. Inverted isosceles triangle relationship of humerus inner and outer condyles and hawksbill is changed. 3. Functional limitation: children tend to use the healthy hand to support the affected elbow joint, the elbow joint semi-flexion nearly straight position, extension and flexion activities are limited, mostly manifested as reluctance to lift the hand, crying after touching. 4. Complications: sometimes may be accompanied by fractures or nerve and blood vessel injuries, will appear corresponding symptoms, should be promptly investigated to avoid further aggravation of the condition. For such patients, once found need to actively go to the orthopedic department of regular hospitals, so that professional doctors for diagnosis and treatment, such as manipulation of reset and so on. Within a period of time after successful reset, the forearm must not be lifted and rotated, otherwise it may cause the patient to dislocate again.