"Liang" (梁), crossbeam; "men" (門), door, entrance and exit. The point is located in the epigastrium, hence the name.

bubble_chart Location

Liangmen (ST21) acupoint
(adapted from "Meridians and Acupoints")

In the upper abdomen, 4 cun above the umbilicus (Zhongwan (CV12)), 2 cun lateral to the midline, at the point 1 cun below Chengman (ST20), and at the upper third of the line connecting Burong (ST19) and Tianshu (ST25).

• Zhenjiu Jiayi Jing: "One cun below Chengman (ST20)";
• Leijing Tuyi: "Opposite Zhongwan (CV12)".

bubble_chart Anatomy

• Muscles: rectus abdominis, with transversus abdominis deeper.
• Nerve: Branch of the eighth intercostal nerve.
• Vessels: branches of the seventh intercostal artery and vein and superior epigastric artery and vein.

bubble_chart Manipulation

Perpendicular insertion or oblique insertion 0.5～1.5 cun. Moxibustion with moxa cone 3 ~ 5 rounds, moxibustion with moxa stick 10 ~ 15 minutes.

bubble_chart Efficacy

Regulate middle qi, harmonize intestines and stomach, resolve accumulation stagnation.

• Classical: Abdominal distention and pain from accumulated gas, loss of appetite, epigastralgia, slippery diarrhea, undigested food, hernia pain, prolapse of rectum, blood clots in women.
• Modern: acute and chronic gastritis, peptic ulcer, indigestion.

bubble_chart Combinations

• Ulcer disease: Liangmen (ST21), Zhongwan (CV12), hand Zusanli (ST36).
• epigastralgia, indigestion, loss of appetite, slippery diarrhea: Liangmen (ST21), Zhongwan (CV12), Zusanli (ST36), Gongsun (SP4), Neiguan (PC6).