1–1.5 cun vertically, along the posterior border of the tibia.
It is better to bent the knee and rotate the hip slightly for location and needling.
Yinglingquan SP-9 is one of the major point for resolving Dampness from the Lower Burner, regardless being Damp-Cold or Damp-Heat. Typical symptoms include difficult urination,
retention of urine, painful urination, cloudy urine, vaginal discharge, diarrhoea with foul-smelling stools, mucus in the stools and edema of the legs or abdomen. Of course, Reduce Needling Method should be applied for this Excess case.
On the other hand, SP-9 is also able to open the Channel so at to treat the Painful Obstruction Syndrome, especially on knees and and legs.