Liver 12, Jimai, Urgent Pulse is a powerful point on the Liver acupuncture channel mainly used for pain and problems with the genitals.
I know few acupuncturists who use it regularly, but then I don’t work in a hospital where it might be more easily accessed.
Location of Jimai
2.5cun lateral and 1cun inferior to Ren 2, medial to the femoral vein.
Needling Urgent Pulse
In the groin, find the femoral artery: it has a strong beat. Medial to that is the femoral vein. This has no beat but is quite wide, up to a finger-breadth across, and often palpable. Liver 12 is just medial to that, in the crease of the groin. Depth? Up to 1 cun, slightly medially.
Moxa: ancient texts, if they mention this point at all, suggest moxa rather than needle.
Perhaps their needling caused a few accidents.
Modern texts suggest needling, for fear of moxa over-heating the femoral artery or setting fire to genital hair.