What acupuncture point is used to induce labor?

Acupuncture Points for Labor Induction

The acupuncture points LI 4 (Hegu) and SP 6 (Sanyinjiao) are the most effective points for inducing labor, with evidence showing they can support cervical ripening and shorten the time interval between the estimated date of confinement and actual delivery. 1

Key Acupuncture Points for Labor Induction

• LI 4 (Hegu): Located between the first two metacarpal bones on the dorsal side of both hands at the top of the muscle belly. This point is one of the primary points used for labor induction and strengthening uterine contractility. 2, 1

• SP 6 (Sanyinjiao): Located at the intersection of 3 meridians (the spleen, liver, and kidney) and is positioned on the inner side of the calf, 3 cun above the medial malleolus. This point is frequently used alongside LI 4 for labor induction. 2, 1

• BL 67 (Zhiyin): Can be helpful in accelerating cervical dilation, with reported effectiveness in approximately 75% of patients. 2

Evidence for Effectiveness

• Studies show that acupuncture at points LI 4 and SP 6 supports cervical ripening at term and can significantly shorten the time period from estimated date of confinement to delivery (5.0 days in the acupuncture group versus 7.9 days in the control group, P=0.03). 1

• Electrostimulation of LI 4 and SP 6 has been shown to be particularly effective in increasing the frequency and duration of uterine contractions. 2

• Cervical length measurements were shorter in women receiving acupuncture at LI 4 and SP 6 compared to control groups on days 6 and 8 after the estimated date of confinement (P=0.04). 1

Clinical Application

• For optimal results, acupuncture points should be stimulated every second day near term. 1

• When using electro-acupuncture, evidence suggests it may be more effective than manual acupuncture for certain outcomes. 3

• The points can be used bilaterally for increased effectiveness. 1

Limitations and Considerations

• While some studies show benefits, a Cochrane review found that overall evidence for acupuncture in labor induction shows mixed results, with some studies showing no clear difference in caesarean section rates between acupuncture and control groups. 3

• The quality of evidence varies from low to high across different studies, and more well-designed trials are needed. 3

• Few trials report on important neonatal morbidity or maternal mortality outcomes. 3

Safety Profile

• Acupuncture for labor induction has no known adverse effects to the fetus based on observational studies. 3

• It represents a non-pharmaceutical option that may be considered before pharmacological methods of induction. 2