Acupuncture
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EX-CA-1
Safety Warnings
- Dangerous point - requires extra caution
- Deep needling contraindicated - shallow insertion only
- Contraindicated during pregnancy
Needle Depth
0.8–1.2 cun
Needle Angle
90° (Perpendicular)
Body Area
Abdomen — Lower
Location
3 cun lateral to the anterior midline and 1 cun superior to the upper border of the pubic symphysis.
Main Actions
- Lifts and regulates Qi
- Regulates menstruation and reduce pain
Commentary
Zigong EX-CA-1's main functions are to lifts and regulates Qi in the Lower Burner so as to regulate menstruation and reduce related pain.
Classical Sources
《针灸大成》(Great Compendium of Acupuncture, 1601): "子宫：二穴，在中极两旁各开三寸。针二寸，灸二七壮。治妇人久无子嗣。" (Zigong: two points, located 3 cun lateral to Zhongji on each side. Needle 2 cun, moxa 14 cones. Treats women who have long been without children.)
《针灸大全》(Complete Collection of Acupuncture): This text first recorded Zigong as an extra point, naming it for its location corresponding to the uterus and its primary use in treating gynecological conditions.
How to Locate
The distance between the upper border of the pubic symphysis and the center of the umbilicus is 5 cun. Zhongji REN-3 is on the anterior midline and 1 cun superior to the upper border of the public symphysis. Zigong EX-CA-1 is 3 cun lateral to Zhongji REN-3.
Caution
This point lies over the lower abdomen where deep needling can penetrate the peritoneum and potentially injure the small intestine. Always ensure the patient has emptied their bladder before needling. Strictly contraindicated during pregnancy as it can induce labor or cause miscarriage. Use caution during menstruation with heavy bleeding. For uterine prolapse, a specialized technique involves directing the needle toward REN-2, rotating to engage muscle fibers, then pulling upward and taping in position for 20-30 minutes.
Needle Angle
90° (Perpendicular)
Depth Category
Medium
Standard Depth
0.8–1.2 cun
Needling Directions
0.5–1 cun vertically or 1–2 cun obliquely towards the upper border of the pubic symphysis. Caution: Peritoneum, pregnancy, full bladder.
Expected Deqi Sensation
Local distension and soreness spreading through the lower abdomen. Some patients may feel the sensation radiating toward the uterine region or lower back. A warm, heavy sensation is common with proper needle stimulation.
Moxibustion
Recommended
Duration: 10–15 minutes
Cupping
Questionable
Bloodletting
N/A
Gua Sha
Questionable
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