Conclusions
Despite the significant variation in specific manipulation for auricular therapy and unsatisfactory methodological quality in this review, auricular therapy could be provided to patients with hypertension as an adjunct to AD for reducing BP value and achieving BP targets. Specifically, auricular acupressure, a kind of auricular therapy, showed favorable changes in efficacy rate compared with sham acupoint and statistically significant reductions in BP compared with no intervention, and when combined with routine AD treatment, it manifests a significantly higher efficacy rate than that of AD treatment alone. Bloodletting in the auricle, another auricular therapy, had a better effect than no intervention on both efficacy rate and lowering BP, and bloodletting in the auricle plus ADs showed a favorable difference in efficacy rate compared with ADs alone.