In doing a review of CHM, professional advice from TCM practitioners is of great value. It is generally assumed that the characteristics of TCM would be well taken into account in a review if one or some of its reviewers majored in TCM. In our study, we found that more than sixty percent of reviews did not have one TCM practitioner in the authors list, which might lead to insufficient consideration of the characteristics of TCM (e.g. determination of treatment based on pathogenesis obtained through differentiation of symptoms and signs) and incorrect results. We suggest that future reviews should be authored by a group of individuals with both clinical expertise and methodological expertise.