0.5–1 cun obliquely towards the spine.
Or 1 to 1.5 cun transversely towards the spine. This method applied more often as it allows the patients to lie in a supine position easily during needling retention.
As the Back Transporting-Shu point of the Liver, Ganshu BL-18 is indicated for most Liver related patterns.
It is widely used to invigorate Liver Qi, in order to ease distension and pain of the hypochondrium, epigastrium, abdomen and hypogastrium. Other symptoms include sour regurgitation, nausea and etc.
By resolving Damp-Heat, Ganshu BL-18 treats jaundice and cholecystitis. By invigorate Liver Blood, it treats abdominal masses.
This point also extinguish Interior Wind so as to ease stiff neck and spine, lockjaw, opisthotonos, or tetany.
Since the Liver opens to the eyes and controls sinews, the point benefits the eyes and sinews in case of blurred vision, excessive lacrimation, upper orbit pain or redness, pain and itching of the eyes as well as pain in lumbar, neck, shoulder and etc.
On the other hand, Ganshu BL-18 can also be used for Empty patterns such as Liver Blood Deficiency. Together with Geshu BL-17, it is able to treat symptoms such as dizziness and blurred vision. In this case, Tonifying Needling method or direct moxibustion should be applied.