Lidui (ST45)
Lidui (ST45), “Severe Mouth”, is a point on the Stomach meridian. It is point 45 of the 45 on the channel. Jing-Well of the Stomach: drains channel Heat, calms the Shen and clears the mind for sleep.
Location
At the lateral corner of the second-toe nail, 0.1 cun from the nail corner.
Functions according to tradition
Jing-Well of the Stomach: drains channel Heat, calms the Shen and clears the mind for sleep.
Traditional indications
- Insomnia with excessive dreaming
- Stomach Heat
- Toothache
- Nosebleed
- Abdominal distension
Indications described by tradition; they do not amount to proven clinical effectiveness for each one.
What its classification means
It is the first or last point of the channel, at the tip of a finger or toe, where tradition says the Qi “wells up”. It is credited with a rapid effect and has been used to clear heat and in acute situations.
Precautions
No specific precautions are described beyond the general ones for acupuncture. Needling must always be performed by a trained professional.
Points on other channels with similar indications
They share several traditional indications with this point. Comparing them helps understand why one or the other is chosen.
- LI2 Erjian (Large Intestine): Nosebleed, Toothache
- GB12 Wangu (Gallbladder): Toothache
Point profile
- Code
- ST45
- Pinyin name
- Lì Duì
- Characters
- 厉兑
- Translation
- Severe Mouth
- Meridian
- Stomach
- Element
- Earth
- Classification
- Jing-Well
- Topics
- Heat, Insomnia
Health notice. Educational and study content. It describes concepts of Traditional Chinese Medicine and does not replace diagnosis or treatment by a healthcare professional. Needling, medicinal herbs and invasive techniques must be applied by trained professionals. Safety guide.
