Which point is located 0.5 cun posterior to Shuàigǔ?

• A. GB 8
• B. SJ-23
• C. GB 9
• D. GB 7

Answer: (C)

Shuàigǔ is the Gallbladder point GB-8 in the temple region. Along the Gallbladder line in that area, the points extend from front to back as GB-7, GB-8, GB-9, GB-10. The point behind Shuàigǔ by about 0.5 cun is GB-9. So the location 0.5 cun posterior to Shuàigǔ corresponds to GB-9. The other options aren’t on the same posterior sequence: SJ-23 is a San Jiao point near the temple but not on the Gallbladder line, and GB-7 is anterior to GB-8 rather than behind it.