Luo-connecting point. Intersecting point: Zhenjiu Jiayi Jing: "Intersection of shaoyin".

bubble_chart Etymology

"Chang" (長), long; "qiang" (強), strong. As the first acupoint of Governor Vessel, which governs all yang meridians, the point has strong qi, hence the name. Alternate names: "Guiwei" (龜尾, turtle tail) and "Weilü" (尾閭, tail gate), named for its proximity to tailbone.

bubble_chart Location

Cross section of Guanyuan (RN4), Zhongji (RN3), Qugu (RN2), and Changqiang (DU1) acupoints
(adapted from "Yan Zhenguo Acupoint Anatomy")

Changqiang (GV1) acupoint
(adapted from "Meridians and Acupoints")

Located below the tip of coccyx, in the depression behind anus. In a prone position, it is the midpoint between the tip of coccyx and anus.

• Zhenjiu Jiayi Jing: "At the end of sacrum",
• Taiping Shenghui Fang: "Below Yaoshu (GV2), in the depression at the end of sacrum";
• Zhenjiu Juying: "0.3 cun below the end of sacrum";
• Donggong Anmo Mijue: "In the depression at the tip of coccyx, located while lying prone".

bubble_chart Anatomy

• Muscle: anococcygeal ligament. Deep to it lies rectum.
• Nerves: coccygeal nerve and anal nerve.
• Vessels: branches of anal artery and vein, and the continuation of interspinal venous plexus.

bubble_chart Manipulation

Assume an elbow-knee position. Insert obliquely upward (at a 45° angle) along the anterior edge of coccyx, 1–1.5 cun. Avoid puncturing rectum. Direct moxibustion is not recommended. Moxibustion with moxa sticks for 5 to 15 minutes.

bubble_chart Efficacy

Relieve convulsion, lift rectum, stop diarrhea, promote bowel movements.

• Classical: stiff spine and opisthotonos, cold pain in waist, rigidity of spine and waist preventing bending, heaviness in sacrum and waist, heavy head, heart pain, through-flux diarrhea, dysentery, rectal prolapse, intestinal wind with bloody defecation , stranguria, difficulty with urination and defecation, retracted genitals, hemorrhoids, mania, infantile convulsions, spasm and convulsion, summer heat exhaustion in adolescents, childhood consumptive disease.
• Modern: epilepsy, schizophrenia, anal fissure, tetanus, coccyx pain, anal itching, genital itching, scrotal eczema, impotence, enuresis, prostatitis, labor induction.

bubble_chart Combinations

• Difficulty with urination and defecation, stranguria: Changqiang (GV1), Xiaochangshu (BL27).
• Childhood fright epilepsy: Shenzhu (GV12), Changqiang (GV1).
• Hemorrhoidal with bleeding: Changqiang (GV1), Chengshan (BL57).
• Pain due to intestinal qi: Changqiang (GV1), Dadun (LR1).
• Dysentery, rectal prolapse: Baihui (GV20), Changqiang (GV1).