A quiet but deeply placed point on the abdomen, right beside the navel. Huangshu (KI-16) sits where the Kidney channel meets the great Penetrating vessel (Chong Mai), giving it a reach that goes far beyond simple digestion — it stirs the deepest currents of the body's inner life.
Name & story
The name 肓俞 Huangshu is rich with meaning. 'Shu' simply means a transport point — a place where something flows through. But 'Huang' is the remarkable word. It refers to the Membranes (Huang) — the thin, living tissue that runs throughout the inside of the body, covering organs, lining cavities, connecting everything from the deep abdomen upward through the diaphragm and into the chest. In classical Chinese medicine, the Huang were considered almost unreachable, which is why a famous saying calls disease that has sunk into the 'Gao and Huang' incurable — it has gone too deep. Huangshu, sitting right at the navel, is said to be at the very origin of these membranes — the place where their root begins. So the name quietly announces: this point touches what is deepest and most interior in us.
Point family & character
Huangshu (KI-16) belongs to the Kidney channel (KI). It is also the meeting point of the Kidney channel with the Penetrating vessel (Chong Mai), one of the Eight Extraordinary vessels and among the most powerful currents in the body.
Five-element dynamics
The Kidney channel carries Water, the deepest of the five elements — the root of Yin and Yang for the whole body. But Huangshu (KI-16) is not just a Kidney point; it is where the Kidney channel meets the Penetrating vessel (Chong Mai), sometimes called the Sea of Blood or the Sea of the twelve channels. The Penetrating vessel is a vast reservoir that nourishes every organ and tissue. Sitting beside the navel — the body's centre, the place where nourishment once entered before birth — this point touches the very middle of the body's inner geography. Through the Membranes (Huang), it has a connection that spreads upward and downward at once, which is why Maciocia notes its use in subduing rebellious Qi of the Penetrating vessel — when energy moves the wrong way, surging upward instead of flowing calmly.
Location
Beside the navel, on either side. Find the centre of the umbilicus and move just half a Cun outward (laterally) — that is where Huangshu (KI-16) sits, level with the navel on both the left and right.
Anatomy & fascia
The point lies on the abdomen, in the region of the rectus abdominis muscle.
Needling
The needle is inserted perpendicularly (straight in).
Safe depth
1 to 1.5 Cun. ⚠️ Caution: deep needling beyond this may penetrate the peritoneal cavity.
Moxa, cupping & Tui Na
Gentle Moxa can be used on this point, especially when there is Cold in the abdomen — cold epigastric pain, cold-type constipation or shan disorder due to Cold are indications where warmth is welcome. Abdominal massage (Tui Na) in the navel region can complement needling.
Functions
Regulates the intestines and the Lower Jiao. Regulates Qi and alleviates pain. Regulates and warms the intestines. Subdues rebellious Qi of the Penetrating vessel (Chong Mai). Moves Qi and Blood (Xue) in the abdomen.
Indications
Constipation and dry stools; diarrhoea and dysenteric disorder; borborygmus (rumbling in the belly); vomiting. Sensation of heat in the lower abdomen; distention and pain of the abdomen; cutting or cold pain in the abdomen; pain of the epigastrium and abdomen; cold in the epigastrium. Shan disorder due to Cold. Pain of the lumbar spine and abdomen; rushing sensation up and down the lumbar spine. Irregular menstruation. Redness and pain of the inner canthus of the eye.
Mind & spirit (Shen)
The Penetrating vessel (Chong Mai) is sometimes called the Sea of Blood, and its rebellious rising — Qi surging upward through the chest and throat — can bring with it a kind of inner turbulence: anxiety, a tight chest, a feeling that something is rushing upward and cannot be settled. Because Huangshu (KI-16) meets the Penetrating vessel right at the body's centre, it can help bring that upward surge back down, returning a sense of groundedness and calm. When the body's deepest currents are flowing in the wrong direction, the mind follows — and calming the Chong Mai through this point can restore a quieter, more settled inner state.
Point combinations
With other Kidney channel abdominal points (such as KI-14 Siman) for lower abdominal pain, constipation, and Penetrating vessel (Chong Mai) disorders. With local abdominal points for intestinal regulation and pain. In the tradition of treating the Penetrating vessel, it is paired with points that subdue rebellious Qi.
Clinical spotlight
What makes Huangshu (KI-16) quietly special is its dual identity: a local abdominal point for straightforward intestinal problems on one hand, and a meeting point of the Kidney channel with the Penetrating vessel (Chong Mai) on the other. Maciocia highlights it specifically for subduing rebellious Qi of the Chong Mai — a pattern seen in Running Piglet Syndrome, surging sensations in the chest, and certain forms of menstrual disruption. Its connection to the Membranes (Huang) also gives it a philosophical depth: located at the navel, the origin of the body's membranes, it touches a level of the body that classical medicine considered almost unreachable. It is both practical and profound.
The golden tip
The navel area is naturally easy to find. For abdominal discomfort, cramping, constipation or a cold, tight belly, gently pressing or massaging half a finger's width to the side of the navel — on both sides — for a minute or two can bring relief. Gentle warmth (a warm pack or warm hands) placed over the navel region is especially soothing when there is Cold in the abdomen. Always work gently here; the abdomen responds to light, respectful touch.
For education only — not medical advice. Consult a qualified practitioner.