Chronic Diarrhea for Years, Worse When You Are Stressed? Doctor Xu Shuwei Treats Jueyin Syndrome With Wu Mei Wan (Mume Pill)

Search terms people use: chronic diarrhea / diarrhea that never goes away / loose stools for years / diarrhea when upset / diarrhea when nervous or stressed

Medical terms: long-standing diarrhea (jiu li) · Jueyin syndrome (cold-heat complex) · chronic colitis · irritable bowel syndrome (IBS)

Opening: diarrhea for years — and it has everything to do with your mood?

Have you ever met someone like this? Diarrhea for years, never cured. A little cold, and it runs. Something greasy, and it runs. And when they get angry, anxious, or upset — it pours out of them.

Doctor Luo says: the illness we discuss today is intimately tied to bad emotions. Long-standing chronic diarrhea is very often not a simple spleen deficiency or kidney deficiency at all — it is a cold-heat complex (寒热错杂), with the root buried very deep. How did the great Song-dynasty physician Doctor Xu Shuwei treat it? With a formula of Zhang Zhongjing’s that cured the patient within days. That formula is Wu Mei Wan (乌梅丸, Mume Pill).

Who was the patient? A cousin of Doctor Xu Shuwei

The patient was a middle cousin (中表亲) of Doctor Xu Shuwei — a relative on his father’s side of the family. This cousin had been ill for eight or nine days. It had begun as an external-contraction illness, and the pathogen had been driving deeper and deeper, layer by layer — by this point the illness was no light matter.

What were the symptoms? The case record spells them out clearly: 渴甚，饮水不止 — extreme thirst, drinking water without stopping, no matter how much water he drank it was never enough; 胸中热疼 — burning heat and pain in the chest; and 气冲心下 — a force rushing upward, straight at the heart.

💬 Note from Doctor Luo: This illness was strange. What did the doctors before Xu Shuwei make of it? Some treated it as heatstroke, because the patient had fever. Others treated it as ben tun (running piglet) syndrome, because qi was rushing upward — the Treatise on Cold Damage does discuss ben tun qi. Everyone had their own opinion, and nobody got it right.

One question breaks the deadlock: “Have you ever vomited worms?”

When it was Doctor Xu Shuwei’s turn, he asked a single question: “曾经吐虫否?” — Have you ever vomited worms?

The family thought for a moment: why yes — yesterday he threw up roundworms.

Doctor Xu Shuwei said: I understand now. This is Jueyin syndrome (厥阴证).

💬 Note from Doctor Luo: Why ask about worms? These days we are careful about hygiene, and parasites are rare. But in ancient times they were everywhere. Doctor Luo remembers that when he was a child, almost every child had intestinal parasites, and families gave kids ta tang (塔糖) — those sweet sugar cones used to expel worms — and after eating them children really did pass long white roundworms. Back then you could see roundworms in the school toilet. That is why Zhang Zhongjing used “vomiting worms” as one of the diagnostic markers of Jueyin syndrome — because it was so common. Today nobody has roundworms, so we can’t use that sign anymore — but the principle still holds: in Jueyin disease there is heat above and cold below; when the intestines are in turmoil, the worms can’t stay put and run upward.

What is Jueyin syndrome? The deepest layer of the Six Channel progression

Why did Doctor Xu Shuwei pronounce “Jueyin” with such certainty? Here we have to explain Zhang Zhongjing’s Six Channel differentiation (六经辨证). Doctor Luo says: Zhang Zhongjing divided the body’s struggle against an invading pathogen into six stages:

• Taiyang (太阳) — the pathogen is at the body surface; the body begins to resist;
• Yangming (阳明) — the pathogen pushes deeper; the body mobilizes all its strength for a fierce resistance;
• Shaoyang (少阳) — upright qi starts to run short; the body wants to fight back but can’t quite manage it. This is the critical hinge (shu ji) where the course begins to turn;
• Taiyin (太阴) — the spleen-stomach system starts to fail;
• Shaoyin (少阴) — this involves the kidney, the deepest, most fundamental substance of the body; the pathogen has driven straight into the innermost reaches;
• Jueyin (厥阴) — the last layer. Here it is either critical collapse or survival against all odds — the turning point between death and life.

💬 Note from Doctor Luo: Once the illness reaches the Jueyin layer, its signature feature is the cold-heat complex — the body is both cold and hot at once, more heat than cold or more cold than heat, but in any case cold and heat tangled together. There are several types. The first is upper heat and lower cold (上热下寒): heat above — wasting thirst, desperate desire for water; qi rushing up to the heart with burning pain — exactly what this patient had; cold below — hungry but unable to eat (ji er bu yu shi); vomiting roundworms when eating (shi ze tu hui); and diarrhea (xia li). The second type is alternating cold and heat (厥热胜复) — spells of icy cold extremities alternating with fever. The third is cold extremities (四肢厥逆) — hands and feet so cold that in mild cases the cold stops at the wrists and ankles, but in severe cases it climbs past the elbows and knees, which is very grave. There are also crisis presentations such as diarrhea with vomiting of blood.

A deep, slow, relaxed pulse — Doctor Xu Shuwei says: this is good news!

The diagnosis was set, and now the pulse — 脉来沉而缓迟: it ran deep, and it was slow and relaxed.

Doctor Xu Shuwei said: this is a good sign!

Why? He explained: by the time the illness reaches Jueyin, all three yin and three yang channels have been traversed. At this point the worst possible thing is a strong, forceful pulse — a strong pulse means the liver pathogen is running wild, attacking and suppressing the spleen-earth. The spleen-earth is our source of postnatal transformation (hou tian), the factory of upright qi; if it is suppressed without relief, the source of upright qi is cut off, and the patient is in mortal danger. The classics warn that in extreme cases the person dies with “tongue curled and scrotum contracted” (she juan nang suo). But this pulse — slow and deep, relaxed and unhurried — shows the spleen-earth has not been crushed, and upright qi still holds. This is a pulse of the earth element with qi intact — a sign the patient can be saved.

💬 Note from Doctor Luo: Zhang Zhongjing said, “What is gentle is called huan (缓), what meets qi gently is called chi (迟).” When the inch pulse is huan and chi, huan means yang qi is growing, chi means yin qi is abundant — marrow filled, essence and blood sufficient, flesh firm, nutritive and defensive qi both moving, hardness and softness in balance. Doctor Luo adds a modern note: when people check their heart rate these days, a calm, relaxed one — say sixty or seventy beats — is actually a good thing. It means each heartbeat delivers all the blood the body needs; the heart works unhurriedly. A relaxed, spirited pulse generally goes with a long life. By contrast, people who worry too much — bosses, managers — have fast, urgent pulses: the heart is exhausted, one beat is not enough, so it has to pound overtime. That kind of person has insufficient heart qi, and their lifespan suffers. So the moment Doctor Xu Shuwei felt this pulse, he had confidence: Jueyin is serious, but with a pulse this calm, there was no danger.

The treatment: first Ling Gui Zhu Gan Tang to drain dampness, then Wu Mei Wan to finish the job

How to treat it? Zhang Zhongjing said that in Jueyin disease, when the patient is thirsty and wants water, let him drink a little at a time and he will recover — shao shao yu zhi yu. But this patient had been drinking far too much water, so the dampness had accumulated and stagnated, and water qi itself was rushing upward. That is why Doctor Xu Shuwei first gave Ling Gui Zhu Gan Tang (苓桂术甘汤) — fu ling (poria), gui zhi (cinnamon twig), bai zhu (atractylodes), and gan cao (licorice) — to drain the dampness away. Then he gave Wu Mei Wan (Mume Pill).

The result: within days, the illness was cured.

💬 Note from Doctor Luo: There is a point here worth dwelling on. Zhang Zhongjing used Wu Mei Wan for Jueyin disease, especially for “hui jue” — the Jueyin pattern with roundworms, where the patient vomits worms. When I first studied Chinese medicine, I thought: who has roundworms these days? Wu Mei Wan has nothing to do with us, no need to study it. Wrong! Vomiting worms was simply telling you one thing: there is a cold-heat complex, upper heat and lower cold, causing a digestive-system disorder. Today nobody has roundworms, but the cold-heat complex pattern is still everywhere — as long as the body shows upper heat, lower cold, and tangled cold and heat, Wu Mei Wan still applies.

Breaking down Wu Mei Wan: sour, cold, hot, and tonic — four divisions of an army

Wu Mei Wan is a genuinely fascinating formula. Doctor Luo lays out its logic clearly:

• Wu mei (mume) leads the formula: sour, astringent, softening and gathering the liver — mume enters the liver channel and calms the liver qi. Emotions are most closely tied to the liver channel; this is the anchor of the whole formula;
• The hot herbs: xi xin (asarum, warming and freeing), gan jiang (dried ginger), fu zi (prepared aconite), shu jiao (Sichuan pepper), gui zhi (cinnamon twig) — warming yang and scattering cold;
• The cold herbs: huang lian (goldthread), huang bai (phellodendron) — clearing heat and draining fire;
• The tonics: ren shen (ginseng) to supplement qi, dang gui (Chinese angelica) to nourish blood — by this stage upright qi is certainly insufficient, so it must be rebuilt.

💬 Note from Doctor Luo: Cold herbs and hot herbs in the same formula — why? To treat the cold-heat complex. Think of it as a battlefield: the enemy has overrun your interior entirely. Resistance is going on here and there, but it has fragmented into small-scale skirmishes — heat in one corner, cold in another, everything in disorder. At this point upright qi is definitely inadequate, so ginseng supplements qi and dang gui nourishes blood — first lift the qi and blood; then use cold and heat together to coax the chaos back into balance bit by bit. This way of thinking is extraordinary.

The sentence Zhang Zhongjing buried in the text: “It also governs long-standing diarrhea”

Doctor Luo points out: after Zhang Zhongjing finished describing Wu Mei Wan’s main indications, he added one more line — “又主久利” — it also governs jiu li. And jiu li means long-lasting diarrhea!

💬 Note from Doctor Luo: If you don’t read the Treatise on Cold Damage carefully, you will never grasp the weight of that sentence. I have studied this for a long time. Chronic diarrhea — including chronic colitis, ulcerative colitis, irritable bowel syndrome, and the like — is extraordinarily hard to treat. Some of these conditions are even listed by the World Health Organization as “incurable.” People with irritable bowel syndrome sit down, eat something cold, and the diarrhea pours out; eat something greasy, and it pours out; get angry about something, and it pours out — the gut is extremely easily irritated. Why is it so hard to treat? Because it is a cold-heat complex: you get diarrhea from cold, so I warm the yang — it improves for a while, then diarrhea again; so I clear heat instead — berberine pills help for a while or do nothing at all. Using cold alone or heat alone never works! Zhang Zhongjing’s answer: use cold and hot together — the hot herbs gan jiang, fu zi, xi xin, gui zhi on one side; the cold herbs huang lian and huang bai on the other; wu mei to gather the liver qi; dang gui and ren shen to support upright qi.

Why is long-standing diarrhea so hard to cure? Emotion is the biggest root cause

So where does chronic diarrhea actually come from? Doctor Luo sums up several causes:

• Insufficient upright qi: the kidney is the “gate” of the stomach; when kidney qi is weak, spleen qi deficient, spleen and kidney cold — upright qi runs low, and slowly the pattern becomes a cold-heat complex;
• Unrestrained diet: eating too richly — rich, fatty, sweet food — combined with too little exercise;
• A pathogen left behind: an external contraction that was never properly resolved, so the pathogen drives inward and plants a seed;
• Mistreatment: a cascade of wrong treatment — antibiotics and harsh medicines — knocking down upright qi until the body turns into a cold-heat complex;
• The biggest factor — emotion! It starts as liver qi stagnation, merely a Shaoyang pattern: bitter taste, dry throat, dizzy vision, no desire to speak or eat, alternating chills and fever, irritability and nausea. But when emotions stay pent up for years, they press deeper and deeper, down to the very bottom of the subconscious — and then they enter Jueyin, the liver channel — the illness sits very deep.

💬 Note from Doctor Luo: How does modern medicine explain this? We often say the human body has a second brain. The upper brain governs consciousness and the limbs; the “brain” in the belly senses emotions and is not under your conscious control. When you are depressed, angry, or suffocated, the peristalsis of different segments of the gut changes speed — some places are inhibited, others speed up; the whole smoothly flowing system gets thrown into disorder, and you get belly pain and diarrhea. The intestines are packed with neurons. When you are heartbroken, furious, or humiliated, you get “puffed up with anger” — where is that puff? It’s in your belly. At the same time, the balance of the gut microbiota (hundreds or thousands of bacterial species) also shifts. The microbiota affects your emotions, and your emotions affect the microbiota — the two influence each other; when the imbalance becomes severe, sometimes it never fully recovers on its own. Doctor Luo shares his own experience: when his father passed away, he grieved, and his diarrhea poured out — it went on for two months. He knew he should treat it, but at that moment he wanted the physical pain to dull the pain in his heart. In later years, every year around that season the diarrhea would return, and he would regulate it with herbs — two or three days and it was settled. Many children get belly trouble before exams for exactly the same reason.

The core method: cold and heat used together, regulating both the inside and the outside

Having explained all this, Doctor Luo hands over the core method for modern application:

💬 Note from Doctor Luo: When I write prescriptions now, I basically no longer use xi xin. I put wu mei, gan jiang, fu zi, huang lian, and huang bai in the formula — this is Zhang Zhongjing’s core idea; cold and hot herbs paired together, and you basically can’t go wrong. Then, according to the individual, I add something to soothe the liver and something to supplement the spleen — ren shen, bai zhu, fu ling, gan cao; often huang qi, Huai shan yao (Chinese yam), and lian zi (lotus seed). Since I learned this method from my elders, this kind of long-standing diarrhea has yielded at the touch of the formula — the results are really excellent. And once the gut is regulated and the microbiota improves, the emotions improve along with it — then you can also untie your own emotional knots. Regulate both inside and outside, and the state gradually recovers.

Doctor Luo closes with a reflection: most Jueyin patterns people encounter today are not transmitted from an external contraction at all — they are internal injury (nei shang): a weakened body, plus bad emotions; the emotions weaken the body further, until a cold-heat complex appears. Such illness is very hard to regulate with other formulas, which makes Zhang Zhongjing’s Wu Mei Wan thinking especially important: the formula contains cold and heat together, wu mei to soften and gather the liver, dang gui and ren shen to nourish blood and qi — one formula that covers the cold-heat complex, liver qi stagnation, and insufficient upright qi all at once.

💬 Note from Doctor Luo: One more thing — many times with chronic diarrhea, even when I am warming the kidney yang, I will add a little huang lian and huang bai. Warming kidney yang can stir up fire; if there is real damp-heat hidden inside, warming alone will cause trouble. Genuine simple spleen-kidney yang deficiency is actually not that common — most cases are tied to emotion, to insufficient upright qi, and to the cold-heat complex. A diarrhea that has run for a year or two has basically all become complex. Regulate from this angle, step by step, and most cases come back into balance. The WHO says some diseases are incurable — yet Chinese medicine can cure them. That is the charm of Chinese medicine.

Compiled from Doctor Luo Dalun’s commentary on Doctor Xu Shuwei’s case record; the original case appears in the Shang Han Jiu Shi Lun, “The Jueyin Syndrome” (Song dynasty; Xu Shuwei 1079–1154).

What to take away: if diarrhea has dragged on for years — worse when you catch cold, eat greasy food, or get upset — stop assuming it is only a spleen or kidney deficiency. Long-standing diarrhea is usually a cold-heat complex, and warming alone or clearing alone will not finish the job. The classical answer is Wu Mei Wan (Mume Pill): wu mei to gather the liver, hot herbs (gan jiang, fu zi, shu jiao, gui zhi) and cold herbs (huang lian, huang bai) together to untangle the mess, and ginseng and dang gui to restore upright qi. And because emotion is the deepest root — the second brain in your belly listens to your moods, and your gut flora and your feelings feed each other — regulating the gut and soothing the emotions go hand in hand. Fix the inside, and the outside follows.