Location
At 1 cun from the umbilicus, directly above (rostral), one point, then at 1 cun above again, another point, two points in total. A total of five points are located below the umbilicus, respectively separated from each other and from the navel by 1 cun. At 2 cun laterally from the navel, one point, then at 1 cun laterally another point. Finally, two lines of two points each, below (caudal) the last two points described (total four points, bilaterally, eight points, each separated from the others by a distance of 1 cun). A total of twenty-three points.