Mania, convulsions, spasms, rigidity of the spine, back pain, stomach pain, jaundice, inability to flex the limbs, muscle cramps and restlessness.

In the back area, on the posterior midline, in the depression below the spinous process of the 9th thoracic vertebra.

Starting from the 7th thoracic vertebra, move vertically downward for two vertebrae (i.e., the 9th thoracic vertebra), and the depression at the lower edge of its spinous process is the location of this acupoint.