Daimai Point (GB-26 / Belt Vessel Point)
Discover the exact location and acupressure method for Daimai (GB-26 / Belt Vessel Point). Learn its benefits for irregular menstruation, leukorrhea, amenorrhea, and dysmenorrhea – the meeting point of Gallbladder and Belt Vessel – plus classic combinations for comprehensive treatment.
Indications
Irregular menstruation, leukorrhea with red and white discharge, amenorrhea, dysmenorrhea, lower abdominal pain, lumbar and hypochondriac pain, metrorrhagia, and infertility.
Precise Location
On the lateral abdomen, at the intersection of the vertical line from the free end of the 11th rib and the horizontal line of the umbilicus.
Location Method
Sit upright or lie laterally. From the free end of the 11th rib (Zhangmen, LR-13), drop a vertical line downward to the level of the umbilicus – the point is at the intersection, where firm pressure produces a distinct sore and distending sensation.
Massage Method
① Massage: Press and knead with the thumb. ② Moxibustion: Apply mild-warm moxa stick. Press and knead Daimai with the thumb about 200 times, or for 3–5 minutes, to treat irregular menstruation and leukorrhea with red and white discharge. Therapeutic actions: Regulates menstruation and stops leukorrhea, regulates qi and activates blood, warms and nourishes Chong and Ren, and secures the uterus.
Compatibility
Leukorrhea with red and white discharge: Combine with Guanyuan (RN-4), Qihai (RN-6), Sanyinjiao (SP-6), Baihuanshu (BL-30), and Jianshi (PC-5). Irregular menstruation and dysmenorrhea: Combine with Guanyuan (RN-4), Sanyinjiao (SP-6), and Xuehai (SP-10). Amenorrhea: Combine with Guanyuan (RN-4), Guilai (ST-29), and Sanyinjiao (SP-6). Lower abdominal pain and lumbar-hypochondriac pain: Combine with Yanglingquan (GB-34) and Zhigou (TE-6). Metrorrhagia: Combine with Yinbai (SP-1) and Sanyinjiao (SP-6). Infertility: Combine with Guanyuan (RN-4), Shenshu (BL-23), and Sanyinjiao (SP-6).
Efficacy & Actions
This point belongs to the Foot Shaoyang Gallbladder Meridian and is the meeting point of the Gallbladder Meridian and the Belt Vessel (Dai Mai). It regulates menstruation and stops leukorrhea, regulates qi and activates blood, warms and nourishes Chong and Ren, and secures the uterus. It is a commonly used key point for treating gynecological disorders. First documented in Lingshu · Jingmai. "Dai" refers to the Belt Vessel, one of the Eight Extraordinary Vessels, which encircles the waist and binds all meridians; "Mai" means vessel. This point is associated with the Belt Vessel and regulates it – hence the name Daimai (Belt Vessel Point).
Contraindications
Located on the lateral abdomen, needling depth should be carefully controlled – generally 0.5–1 cun vertically, avoiding excessive depth to prevent internal organ injury. Use with caution in pregnant women. Moxibustion is permissible.
