Yinjiao (GV 28) is generally used in treatment of lumbago and anorectal diseases. Professor LIN Guo-hua believes that Yinjiao (GV 28) is indicated in the disorders related to the sea of marrow and lower jiao by regulating the governor vessel and the conception vessel, promoting qi and blood circulation, tonifying the sea of marrow and adjusting the lower jiao. Based on professor Lin's clinical experience, "three Yinjiao" points are innovated, named Yinjiao (GV 28, upper Yinjiao), external Yinjiao and lower Yinjiao. Acupuncture therapy is generally optioned at Yinjiao (GV 28) and 5 needling principles are emphasized, i.e. accurate acupoint location, strong needling sensation, needling combined with body movement, alternative stimulation and allied stimulation. All of those mentioned above provide a new approach to the clinical treatment for the disorders related to the sea of marrow and lower jiao.
龈交穴临床多用于治疗腰痛和肛肠疾病，林国华教授认为其可通过调督任、畅气血而具有补益髓海、调畅下焦的功效，可用于治疗髓海及下焦疾病。并基于临床经验创造性地提出了“三龈交”概念，分别为龈交穴（或称上龈交）、外龈交、下龈交。林教授运用龈交穴治疗疾病多用针刺疗法，强调取穴要准、针感要强、针刺配合运动、交替刺激、联合刺激5点原则，为临床治疗髓海及下焦疾病提供新思路。.
Keywords: LIN Guo-hua; Point GV 28 (Yinjiao); disorder related to the sea of marrow; famous doctor's experience; lower jiao disorder.