Governor vessel

Duiduan(GV-27/兌端) : Nomenclature, Location, Functions, Method, Precaution

Duiduan GV27
Duiduan GV27


Dui: mouth Duan: tip
Duiduan is at the tip of the upper lip.
English name/meaning : End Exchange
Chinese name: 兌端
Chinese pinyin : duì duān
Korean name: tae don 태단
Japanese name: da tan(?)
Vietnamese name: Đoài đoan


On the midline, at the junction of the margin of the upper lip and the philtrum.


Insert obliquely directed superiorily 0.2 to 0.3 cun.


  • Calms shen so is used for various mental ilness line anxiety, depression, epilepsy, infantile convulsion
  • Clears heat so helps with mouthbleeding and sores, pain and swelling in the gums due to heat affecting yangming channel.
  • Local disorders of mouth, lip and teeth.


First aid for toothache.


General precautions.


Dr. Ishwar Gyawali is Consultant Acupuncturist and Ayurveda Physician from Kathmandu, Nepal. He had completed BAMS (Bachelor of Ayurveda Medicine and Surgery), a five and half year course on Ayurveda Medicine from Kirtipur Campus affiliated to Tribhuvan University ,Institute Of Medicine, Nepal under scholarship in 2011. He had completed his MD in TCM from Nanjing University Of Chinese Medicine in 2016 under scholarship of Ministry of Education, Nepal. With an experience of Serving for Government of Nepal for 2 years and private practise for more than 5 years, he has sound knowledge in Ayurveda as well as Chinese Medicine. He is a registered Doctor in NAMC (Nepal Ayurveda Medical Council ) both as a physician as well as TCM/Acupuncture Specialist.