RESUMEN
OBJECTIVE@#To investigate the different kinds of controversial cases of mental disability after brain damage, to analysis the problems in the first appraisal, and to explore solutions of the problems.@*METHODS@#The reappraisals of mental disorders after traumatic brain damage were collected from 2007-2011 in Shanghai forensic center, and the first appraisal and reappraisal cases were analyzed and compared.@*RESULTS@#The changes of conclusion in reappraisal cases showed the following major reasons: inappropriate appraisal time, not comprehensive and object investigation of mental state of patients in first appraisal, misunderstanding the standards, etc.@*CONCLUSION@#The quality improvement of appraisal should adopt the following measures: regulating the practice, improvement of the professional skills of experts, choosing appropriate appraisal time, improvement of appraisal standards, etc.