On the lower abdomen, which point lies 2 cun lateral to the midline and 2 cun inferior to the umbilicus, level with Shímén REN-5?

• A. ST 20
• B. ST 21
• C. ST 23
• D. ST 27

Answer: (D)

Locating abdomen points relies on two reference lines: the midline and the level of the umbilicus, with lateral distance measured in cun. The description places the point 2 cun to the side of the midline and 2 cun below the umbilicus, on the same horizontal level as Shímén (Ren-5), which sits on the midline 2 cun below the umbilicus. That exact position is Stomach 27, which is on the stomach meridian in the lower abdomen at that location. Other points in that area sit at different heights or farther from the midline, so they don’t match this precise description.