As one of the external therapies in Traditional Chinese Medicine (TCM), umbilical therapy possesses the effects of stimulating meridian qi, dredging meridians, and regulating primordial qi (yuan qi) as well as the functions of zang-fu organs. Professor Gao Shuzhong has developed the “Four Passes Theory” (Si Guan Li Lun), emphasizing the importance of the “umbilical pass” (Qi Guan). He proposed specific acupoints with both diagnostic and therapeutic functions, including Umbilical Heart Point (Qi Xin Xue), Umbilical Kidney Point (Qi Shen Xue), Umbilical Liver Point (Qi Gan Xue), Umbilical Lung Point (Qi Fei Xue), and Umbilical Stomach Point (Qi Wei Xue). Professor Gao has fully explored the characteristics of externally applied TCM herbs, constructed a framework for medication in umbilical therapy, and created the “Gao-style Umbilical Moxibustion Prescriptions”—exquisitely formulated recipes that achieve complex therapeutic effects through simple approaches.​In clinical practice, Professor Gao mainly adopts the “herb-separated umbilical moxibustion” technique, with key operational points including appropriate size of moxa cones, proper dosage of herbal powder filled into the umbilicus, and moderate duration of moxibustion. Additionally, he flexibly applies other umbilical therapy methods such as umbilical acupuncture, umbilical application (tapping), and umbilical massage. Umbilical therapy has shown favorable clinical efficacy in preventing and treating various diseases, making it worthy of promotion.