What Are Acupuncture Points? The Meridian Network and Key Points Explained

Points on the Meridian Network

Acupuncture points (穴位, xuéwèi — literally "cave positions" or "hole sites") are specific locations on the body's surface where qi and blood in the meridian (经络, jīngluò) network are accessible from the outside. The meridian network is the system of channels through which qi and blood circulate throughout the body, connecting the organs to the surface and to each other. Acupuncture points are where this internal circulation comes close enough to the surface to be influenced — through needling, moxibustion, acupressure, or cupping.

The classical texts describe 365 primary acupuncture points, corresponding symbolically to the days of the year — a number that has expanded in modern practice to over 400 named points on the primary meridians, plus hundreds more on the extraordinary meridians and the microsystems (ear acupuncture, hand acupuncture, scalp acupuncture).

The Meridian System

The 12 primary meridians (十二正经) run bilaterally through the body, each associated with a specific organ — the lung meridian, the large intestine meridian, the stomach meridian, the spleen meridian, the heart meridian, the small intestine meridian, the bladder meridian, the kidney meridian, the pericardium meridian, the triple warmer meridian, the gallbladder meridian, and the liver meridian. Each meridian has a specific pathway from extremity to trunk (or trunk to extremity), a specific organ it connects with, and a specific set of acupuncture points along its course.

Beyond the 12 primary meridians, 8 extraordinary meridians (奇经八脉) — including the Governing Vessel (督脉, running up the spine and head) and the Conception Vessel (任脉, running up the midline of the abdomen) — serve as reservoirs and regulatory pathways for qi and blood.

How Points Are Named

Classical Chinese acupuncture point names are poetic and descriptive — they reference the terrain, the function, or the classical image associated with the point's location and action. Some examples:

Zu San Li (足三里, ST-36) — "Leg Three Miles" — on the stomach meridian, three inches below the knee on the outer aspect of the lower leg. One of the most used points in acupuncture, it tonifies spleen and stomach qi, supports the digestive centre, and — according to the classical interpretation — gives the ability to walk three more miles when exhausted. Historically, Japanese moxa practitioners burned moxa on this point daily for longevity.

He Gu (合谷, LI-4) — "Joining Valley" — in the web between thumb and index finger. On the large intestine meridian, it is the most used acupressure point in self-care: relieves headache (particularly frontal), toothache, facial pain, and has a general qi-moving and pain-relieving action. Contraindicated in pregnancy due to its powerful descending action.

Nei Guan (内关, PC-6) — "Inner Pass" — on the pericardium meridian, three finger-widths above the wrist on the inner forearm. Used for nausea, palpitations, anxiety, and the chest oppression of heart qi stagnation. The point used by travellers for motion sickness (the basis of acupressure wristbands).

Tai Chong (太冲, LV-3) — "Great Surge" — on the liver meridian, in the web between the first and second toes. The most important liver point for moving liver qi stagnation — used for stress, irritability, headache, and the qi-moving applications that liver qi stagnation requires.

Shen Men (神门, HT-7) — "Spirit Gate" — on the heart meridian at the wrist crease, on the ulnar side. The primary point for shen-calming: insomnia, anxiety, palpitations, and the heart blood deficiency presentations where the shen needs anchoring.

Point Selection in Clinical Practice

Acupuncture point selection follows the pattern diagnosis — the same pattern framework that underlies all of Chinese medicine. For liver qi stagnation, points that move liver qi (LV-3, LI-4) are selected. For spleen qi deficiency, points that tonify spleen and stomach (ST-36, SP-6, CV-12) are selected. For kidney deficiency, points that nourish kidney qi and yin (KD-3, BL-23) are selected.

This is the fundamental difference between acupuncture in practice and the simplified acupressure self-care that focuses on single points for single symptoms. The clinical acupuncturist selects a constellation of points addressing the full pattern; the self-care practitioner finds one or two points most relevant to the immediate presentation.

Acupressure: Points Without Needles

The same points used in acupuncture can be stimulated through manual pressure — this is acupressure (推拿, tuīná), the self-applicable version of point stimulation. Firm, sustained pressure on a point for 1-3 minutes produces a milder but genuine effect — appropriate for self-care applications like headache relief (He Gu), nausea (Nei Guan), and the daily self-massage practices that Chinese self-massage techniques covers in the context of daily practice.

The access point for understanding the overall system that individual points sit within — the qi that flows through the meridians, the pattern framework that determines which points are relevant — is what is qi, which covers the fundamental concept that acupuncture point theory is built on.