The acute specialist of the Liver channel. Zhongdu (LR-6) is the Xi Cleft point of the Liver Meridian (LR) — the point the channel calls on in moments of urgency: sudden pain, acute bleeding, and the sharp cramps that belong to Liver disharmony. When things flare up fast, this is where to look.
Name & story
The name 中都 Zhongdu means "Middle Capital" or "Middle Metropolis" — the character 中 (zhōng) is "middle", and 都 (dū) is a great capital city, a place where things gather and concentrate. And that is exactly what happens at a Xi Cleft point: the Qi and Blood (Xue) of the channel, which have been flowing near the surface since the toes, gather here and plunge deeper into the body. The point sits roughly at the midpoint of the lower leg — literally the middle of the channel's journey up the leg — and it is from this central gathering place that the Liver channel's power is focused in times of acute need.
Point family & character
Zhongdu (LR-6) belongs to the Liver Meridian (LR). Its defining character is that it is the Xi Cleft point of the channel. Xi Cleft points — one on each meridian — are classically indicated for acute conditions and pain. The Xi Cleft points of the Yin channels carry an additional action: they are especially effective for stopping acute bleeding, which makes LR-6 particularly suited to urgent gynaecological and lower abdominal situations.
Five-element dynamics
The Liver belongs to the Wood element — the element of growth, movement and free flow. When Wood is thwarted, Qi Stagnation builds, and when that stagnation turns acute, pain and bleeding can follow. Zhongdu (LR-6), as the Xi Cleft point, is where the channel's energy is deepest and most concentrated. It is the Liver's emergency reserve: when the Wood element is in crisis — sharp pain, sudden bleeding, stagnant Qi erupting — this point mobilises the channel's gathered resources and directs them where they are needed most.
Location
On the inner side of the lower leg. Divide the distance between the tip of the medial malleolus and the popliteal crease into two equal halves, then move 0.5 Cun distally (downward) from that midpoint. The point sits between the back edge of the shin bone and the calf muscle.
Anatomy & fascia
The point lies between the posterior border of the tibia and the gastrocnemius muscle on the medial aspect of the lower leg.
Needling
Two approaches are used: a perpendicular insertion straight into the point, or an oblique insertion directed proximally (upward, toward the abdomen) along the channel.
Safe depth
Perpendicular: 0.5–1 Cun. Oblique directed proximally: 1–2 Cun.
Moxa, cupping & Tui Na
Acupressure and firm massage along the medial lower leg can help move stagnant Liver Qi in between treatments. Moxibustion may be appropriate in Cold-type Shan disorder or cold sensation in the lower legs.
Functions
Spreads Liver Qi and regulates the Lower Jiao; Regulates Blood (Xue) and stops acute bleeding; Drains Dampness.
Indications
Shan disorder (hernia-type pain) and lower abdominal pain; hypogastric pain; persistent flow of lochia after childbirth; uterine bleeding. Diarrhoea. Damp painful obstruction with difficulty walking; flaccidity and emaciation of the legs; numbness of the body, hands and feet; cold sensation of the lower legs with inability to stand for long; hot sensation of the soles of the feet.
Mind & spirit (Shen)
The Liver in Chinese medicine is the organ that governs the smooth flow of Qi — and when that flow is blocked, the emotional world tightens along with the physical. Frustration, irritability and a sense of being trapped are the emotional face of Liver Qi Stagnation. When stagnation turns acute, it can spill into anxiety or agitation. Zhongdu (LR-6), by powerfully clearing the obstruction in the channel, can release not only the physical cramp but some of that inner tension with it — the sense of something stuck that has nowhere to go. It will not replace the quieting points of the Heart or the mind-settling of Shen-focused treatments, but in an acute flare of Liver disharmony, releasing the channel can bring a noticeable settling of the restless, wound-up feeling that accompanies it.
Point combinations
As a Xi Cleft point it is most commonly brought in for acute Liver-channel pain and sudden bleeding in the lower abdomen and pelvis, often combined with local lower abdominal Mu points and distal Liver channel points such as Taichong LR-3 (the Yuan Source point) to spread the Liver Qi more broadly. For persistent lochia or uterine bleeding it may be used alongside points that regulate Blood (Xue) in the uterus.
Clinical spotlight
Zhongdu (LR-6) earns its place through specificity. Most Liver channel points are used daily for chronic Liver Qi Stagnation, Yin Deficiency or Blood Deficiency — gentle, broad actions over time. LR-6 is different: its Xi Cleft nature points it squarely at the acute. As Deadman notes, Xi Cleft points are where Qi and Blood (Xue) "gather and plunge more deeply", and the Xi Cleft points of the Yin channels carry the additional classical action of stopping acute bleeding. This makes LR-6 the go-to Liver channel point when the presentation is sudden and sharp — acute lower abdominal pain, persistent post-partum lochia, or uterine bleeding — rather than the slow chronic patterns that most other Liver points address.
The golden tip
If you experience tightness, cramping or dull aching along the inner leg, you can find Zhongdu on the inner side of the lower leg, roughly halfway between the ankle bone and the back of the knee, just behind the shin bone. Firm, sustained pressure or gentle rubbing for one to two minutes can help encourage movement in the Liver channel. For acute or unexplained bleeding, always seek professional care first.
For education only — not medical advice. Consult a qualified practitioner.