Gan Shu (BL18)
📍 Location
On the back, below the spinous process of the 9th thoracic vertebra, 1.5 cun lateral to the midline.
🏥 Indications
Back-shu point of the liver: jaundice and hypochondriac pain from liver-gallbladder disease, eye disorders, irritability, and back pain.
🖐️ Stimulation method
Oblique insertion 0.5–0.8 cun toward the spine; needle-warming moxibustion and cupping are common.
⚠️ Contraindications
Avoid deep insertion because the lung is close; oblique insertion only.