Lower back pain, diarrhea, constipation, hemorrhoids, rectal prolapse, bloody stool, epilepsy, dysuria, irregular menstruation, and atrophy and flaccidity of the lower limbs.

In the sacral region, on the posterior midline, directly opposite the sacral hiatus.

Supine position. First, locate the sacral horns on either side above the coccyx, then find the intersection of the line connecting the lower edges of the two sacral horns with the posterior midline, which is the location of this acupoint.