GV 2 Acupuncture Point Theory

The acupuncture point "GV 2" , 腰俞, is represented by "Yao Shu" in pinyin and "Lumbar Shu" in english and may be found:

In the hiatus of the sacrum (where you feel a superior ridge where S4 & S5 bones were as a child).

Of many possible clinical applications, it may be considered to influence the following issues/symptoms:

May be used instead of GV 1 for anal issues - prolapse, hemorrhoids.
Warming point, for cold in the lower warmer, irregular menstruation, amenorrhea or uterine bleeding from deficiency, leukorrhea, weakness or atrophy of the lower limbs, seminal emission, impotence, diarrhea.
Coccyx pain with difficulty sitting or pain at the opposite end of the channel, posterior neck pain, occipital or frontal headache.

While not necessarily valid clinically, UB 34 (UB 31, UB 32, UB 33 & UB 34 together form the…) are nearby.