Which point lies on the dorsum of the foot between the second and third toes, about 0.5 cun proximal to the margin of the web?

• A. ST 43
• B. ST 42
• C. ST 45
• D. ST 44

Answer: (D)

The spot being tested is defined by its exact interdigital position on the dorsum of the foot along the Stomach channel. It lies in the second interdigital space between the second and third toes, about 0.5 cun toward the ankle from the margin of the web. That precise location—between the second and third toes, in the depression just proximal to the web margin—matches ST-44. Distinctions in this area matter because the nearby points are in the same general neighborhood but occupy different distances from the web margin or lie between different toes, so they do not sit at that specific 0.5 cun proximal position.