Zhiyin zhì yīn · 至阴

Location. On the lateral side of the distal segment of the little toe, 0.1 cun from the corner of the toenail.

Category. Jing-well point 井穴

The well point of the Bladder meridian and the last point on the channel. Moxibustion here is the classical technique most often cited in relation to fetal position; whether it changes outcomes is not settled.