Headache is a heterogeneous condition represented by a wide variety of TCM diagnoses. There is variability among acupuncturists in the diagnosis of TCM patterns and the selection of acupuncture points for needling. These data suggest, however, that most persons with frequent headache appear to have liver Yang and Qi disharmonies for which needling of Liver 3, Large Intestine 4, and/or Governing Vessel 20 may be appropriate. Further research is needed to determine the extent to which variability in the diagnosis or acupuncture point selection among acupuncturists affects clinical outcomes.