至阴

Zhiyin(BL67,至阴) is an acupuncture point in the meridian named Taiyang Bladder Meridian of Foot. It is the Jing-Well Point of the bladder.

Meaning

Zhi, reaching; yin, Yin of Yin-Yang.
Yin refers to the Foot-Shaoyin Meridian. This is the end point of the Bladder Meridian of Foot-Taiyin, from where it reaches to the Foot-Shaoyin Meridian.

Location

On the lateral side of the small toe, about 0.1 cun posterior to the corner of the nail.

Indication

1. One of the twelve Jin points, can be used to treat coma in first aid.
2. To correct the position of fetus(moxibustion).
3. Prolonged labor, placenta.
4. Terminal neuritis, pain and numbness of the toe tip.

Method

1. Puncture perpendicularly 0.1cun.
2. Peck to bleeding with a three-edged needle.