Medical records must be accurate and informative. Medical records reflect a doctor's logic of reasoning. The most common fallacies noted in medical records in Taiwan include the failure to know the differences between facts and personal theory, the failure to record complete medical history and to complete physical examination, the failure to chronologically organize the data, the failure to list all problems and summarize problems according to syndrome, the failure to consider all possible diseased for etiology during the evaluation of a syndrome, the failure to list each possible causative disease by probability, and failure to assess the severity of each problem.