KD-13 is located on the lower abdomen, 3 cun below the umbilicus, 2 cun superior to the superior border of the symphysis pubis, 0.5 cun lateral to the midline. Which point is this?

• A. REN-4
• B. KD-13
• C. KD-15
• D. REN-7

Answer: (B)

Understanding how to pinpoint points on the abdomen relies on cun measurements and clear landmarks. Here, the location is described as 3 cun below the umbilicus and 0.5 cun lateral to the midline, placing the point in the lower abdomen just to the side of the centerline. That exact combination—below the umbilicus with a slight lateral offset along the kidney channel—matches the KD point located there. Points on the midline, like those on the Ren channel, would sit directly on the centerline and not off to the side. The other nearby options lie at different vertical levels or along the midline, so they don’t fit this precise description. This is why the described location corresponds to the kidney point in the lower abdomen.