One of the Baliao points.

bubble_chart Etymology

Zhong, middle, liao, also known as 窭, bone hole. The point is the third posterior sacral foramen, ranking among the upper, second, middle and lower Baliao points, hence its name.

bubble_chart Location

Baliao acupoints (BL31~BL34)
(adapted from "Meridians and Acupoints")

Sacrum, Ciliao (BL32), about 8 fen below and inside, suitable for the depression of the third posterior sacral foramen; outside and Zhonglushu (BL29) Level with each other, about 6 fen from the midline of the back.

• Zhenjiu Jiayi Jing: "In the third sky, among the chivalrous spines";
• Zhenjiu Jicheng: "In Ciliao (BL32), straight to Zhonglushu (BL29)"

bubble_chart Anatomy

• Muscle: Origin of gluteus maximus.
• Nerve: posterior branch of the third sacral nerve.
• Vessels: posterior branches of lateral sacral artery and vein.

bubble_chart Manipulation

Directly opposite the posterior sacral foramen perpendicular insertion or slightly upward oblique insertion 1 to 2 cun. It should not be too deep to avoid passing through the sacral hole and injuring the rectum and bladder. Moxibustion with moxa cone 3 to 7 times, moxibustion with moxa stick for 10 to 15 minutes.

bubble_chart Efficacy

Manage the lower jiao and strengthen the waist and knees.

• Classical: Lumbago, cold in the middle, abdominal distension and fullness, difficulty in defecation, diarrhea, dysentery, irregular menstruation, red leucorrhea.
• Modern: prostatitis, pelvic inflammation.

bubble_chart Combinations

• Difficulty in defecation: Zhongliao (BL33), Chengjin (BL56), Chengshan (BL57), Zhongwan ( CV12), Shimen (CV5), Dazhong (KI4), Taixi (KI3), Taichong (LR3).
• irregular menstruation, leukorrhea: Shenshu (BL23), Zhongliao (BL33), Pangguangshu (BL28), Guanyuan (CV4 ), Sanyinjiao (SP6).