Diarrhea Every Time You Worry, and It Still Hurts Afterward? Doctor Zhu Danxi: Worry Harms the Spleen — Tonify the Spleen and Nourish the Blood

What people search for: diarrhea every time something worries me / diarrhea from overthinking / stomach still hurts after diarrhea / constant urge to go but nothing comes out / diarrhea with poor appetite / emotional diarrhea

In medical terms: zhixia (dysentery-type disorder) · heart and spleen both deficient · constrained liver qi · emotional illness

Opening: friends eating breakfast, you may want to look away

Doctor Luo Dalun opens with a joke: this case is about diarrhea — so if you are listening over breakfast, maybe pause for now. Breakfast paired with “loose bowels” is not a great combination; come back to it later.

💬 Note from Doctor Luo: He can open this way because the case is such a classic — it is about the relationship between emotions and the belly. These days, the problems caused by emotions are everywhere: bad moods produce a huge number of illnesses, and constrained liver qi (gan qi bu shu) causes a great many problems too. And Doctor Zhu Danxi was precisely the first person in history to explain this clearly.

Who was the patient: an elder of his uncle’s generation, struck by “zhixia” in summer

The patient was a relative of Doctor Zhu Danxi’s uncle’s generation, over fifty years old. In summer he fell ill with zhixia (滞下) — a dysentery-type disorder: after a bowel movement the belly still hurts, and he keeps feeling he must go again, yet very little comes out. That constant, urgent, unsatisfied urge is what Chinese medicine calls tenesmus (li ji hou zhong, 里急后重).

💬 Note from Doctor Luo: Zhixia of this kind was a common disease in the Jiangnan region of the time, and Doctor Zhu Danxi treated many cases. The word “dysentery” today usually means a highly contagious, acute intestinal infection. But many of Doctor Zhu Danxi’s patients showed these symptoms for reasons that were not necessarily infectious — the causes could be far more complex. That is worth keeping in mind.

How sick was he: brown stools, belly pain, and no appetite at all

The elder had a mild ache in the belly, and his stools were brown in color. The tenesmus was severe — after each movement the pain was unbearable. Worst of all: his food intake plummeted (gu shi da jian). His appetite was terrible; he ate very little.

What does a plummeting appetite mean? It means the spleen and stomach have been badly hurt. And he also ran a slight fever now and then — occasionally feeling a little hot — which tells us there was damp-heat in the body.

💬 Note from Doctor Luo: Look at these symptoms — they look just like the “gushing diarrhea” you get from catching a chill or eating something bad. Anyone would treat it as ordinary dysentery. But the moment Doctor Zhu Danxi felt the pulse and looked at the man, he made a completely different judgment — that is the eye of a master.

The key diagnosis: one touch of the pulse, and Doctor Zhu Danxi said — this is not zhixia!

Doctor Zhu Danxi felt the pulse: wiry and choppy (xian er se). The wiry quality (xian mai) indicates constrained liver qi; the choppy quality (se mai) indicates qi and blood moving sluggishly — when qi and blood are weak, the pulse turns choppy. Looking closer, the pulse was also rapid and somewhat long (shu er shao chang) — rapid means the beat is a little fast; long means the pulse extends beyond its usual position — both pointing to fairly obvious damp-heat in the body. Fortunately the pulse was not very floating or large (bu shen fu da) — the upright qi had not been badly depleted yet. One more detail: the two hands were equal — the pulse was much the same on both sides.

Then he studied the man — Doctor Zhu Danxi was exceptionally skilled at inspection. The moment he saw the elder, he noted utter exhaustion of spirit (shen qi da bei) — his appetite was already terrible, his spirit could not compare with his former self; the whole man seemed wilted.

Doctor Zhu Danxi rendered his verdict in eight characters: “This is not zhixia. It is caused by worry and anxiety: the heart blood is depleted and the spleen qi is weak.”

💬 Note from Doctor Luo: This case is famous precisely for those eight characters. Doctor Zhu Danxi looked at the situation and declared outright: this is not an intestinal infection — it is a disease caused by emotions! Before Doctor Zhu Danxi, no one had written in such detail about emotions producing physical illness. Why was he so attentive to the “heart”? Because he was deeply influenced by Zhu Xi’s Neo-Confucian philosophy, which focuses on the human heart and on human emotional life — and from that focus he discovered that emotions can make the body sick. Think about it: this man was pouring with diarrhea and could barely eat — and the cause was worrying day after day, thinking too much — harming the heart blood, making the spleen weaker and weaker, and finally producing this diarrhea.

The prescription, broken down: Renshen and Baizhu as monarchs — tonify the spleen, nourish the blood, nothing complicated

Doctor Zhu Danxi’s approach was beautifully simple: Renshen (ginseng) and Baizhu (white atractylodes) as the monarch herbs — to tonify the spleen. Tonifying the spleen, he said, is nourishing the blood (for the spleen makes blood from food); then Fuling (poria) to drain dampness and help Renshen and Baizhu strengthen the spleen. These herbs plus Gancao (licorice) are essentially the Four Gentlemen Decoction (Si Jun Zi Tang) as the base. To that he added Chenpi (tangerine peel) to regulate and move the qi — for people in a bad emotional state, a little Chenpi helps a great deal. Then Danggui (Chinese angelica) to nourish the blood, Chuanxiong (ligusticum) to move the qi within the blood and keep it flowing smoothly, and Baishao (white peony) to restrain and soften the liver — so the formula both tonifies the spleen and settles the liver, and only then can the spleen and stomach truly grow strong. Finally, a small amount of Huanglian (coptis) to clear damp-heat — because the weather was scorching at the time, damp-heat sat in the body, and the pulse was beating fast.

💬 Note from Doctor Luo: The whole formula: Renshen and Baizhu as monarchs, blood-nourishing herbs like Danggui in support, Chenpi as minister to move qi, with Chuanxiong, Baishao, and Fuling as assistants and couriers, plus a tiny bit of Huanglian at the end. Not many ingredients — but utterly classic: tonify the spleen first, add blood-nourishing herbs, then a little damp-heat clearing. This structure — “a large dose of spleen-tonifying herbs with just a touch of damp-heat clearing” — was used over and over by the ancient masters. Look at today’s research on the gut microbiome and you will understand: the spleen-tonifying herbs are probably promoting the growth of beneficial gut bacteria, while herbs like Huanglian and Huangbai kill off the harmful ones. Did the ancients already grasp this mechanism? I think this direction has real research potential.

The recovery: cured in two days — or was it two months?

With this formula, he was at ease within two days (yu liang ri er an) — two days of treatment, and he was well.

However, some later books — for example Gujin Yi’an (Ancient and Modern Case Records) — changed this to “at ease within two months.” Doctor Luo Dalun’s view: later editors may have doubted that “two days” was possible, suspected a copyist’s error, and amended it to two months. It is indeed a puzzle — but recovery was not always slow. A second, very similar case took about a month to heal; a third took only ten-odd days. The time a formula takes to work is not fixed.

💬 Note from Doctor Luo: Generally speaking, Doctor Zhu Danxi’s method of treatment does tend to take longer. Sometimes he worked fast, sometimes he was in no hurry — because he treated the whole person, not just the illness in front of him. He was thinking about how your body would be in the future, so he slowly rebuilt your upright qi — that is Doctor Zhu Danxi’s signature. Many patients trusted him completely: “Follow your approach — I’ll keep taking the medicine.” The rare few who did not, like his classmate Ye Yi (叶仪), would grow impatient midway, bid farewell to their family saying they would not continue — and Doctor Zhu Danxi would simply say: all right then, let me purge you — and one purge cured them. When most patients trust the doctor, the physician keeps his composure, and patient and doctor work together as one (liang mei xiang cheng) — only then can an illness be cured.

Where did this skill come from? The “slow craft” of his teacher, Doctor Luo Zhiti

Doctor Zhu Danxi learned this whole approach — “support the upright qi first, expel the pathogen slowly” — from his teacher Doctor Luo Zhiti (罗知悌).

Doctor Luo Zhiti once treated a monk who was skin and bones, utterly wasted. The monk wanted to return to lay life but could not; he could only beg for food. Doctor Luo Zhiti did not rush to use tonic herbs. Instead he had pork stomach and meat simmered into an extremely soft porridge and let the monk drink it slowly. After about half a month, the monk gradually recovered, his body grew sturdier — and only then did Doctor Luo Zhiti give him Taohe Chengqi Decoction (Peach Kernel Qi-Guiding Decoction) to purge, which expelled the stagnant blood and phlegm accumulation from his body. After that the monk was completely well.

💬 Note from Doctor Luo: The teacher kept his eyes on the pathogen, yet he was in no hurry — because he knew this man’s body was weak and the pathogen had to be dealt with slowly. Doctor Zhu Danxi learned this approach and, in all his practice, laid great weight on the person being treated. Do the opposite — see only the disease — and here is what happens: for rheumatism you warm the yang and dispel dampness, bringing in the insect herbs and attacking with everything; it works for the moment. But wind-damp that appears on a foundation of deficient qi and blood is not cured that way — you weaken the person, and two days later, when the temperature drops, the illness returns. You saw the disease, not the sick person. Fewer and fewer doctors work this way now — why? Patients are increasingly impatient; if a few doses do not show results, they change doctors. What a pity.

Note from the commentator: when adjusting emotions, do not only soothe the liver

What do we learn from this case? Emotion-driven problems are everywhere in modern life, and many people’s first reflex is to soothe the liver and move qi (shu gan li qi) — but you will find that soothing the liver alone is often not enough.

Doctor Zhu Danxi gives us a much better route: tonify the spleen and nourish the blood. When spleen qi is sufficient, the Earth is strong. The pattern “Wood overcomes Earth” means the liver (Wood) runs amok and bullies the spleen (Earth) — but if your Earth is strong enough, it can control Wood in return and keep it quiet. Moreover, nourishing Earth generates Metal (pei tu sheng jin): when Lung qi (Metal) is full, Metal in turn restrains Wood and makes the liver rein itself in. So when you want to adjust emotions and liver qi, tonifying the spleen plus a little liver-soothing, qi-moving medicine works far better. Doctor Zhu Danxi was in fact exceptionally good at untangling the various kinds of stagnation — it is one of the core theories of his school. But he considered spleen-tonifying the most important idea of all: if I lift up the upright qi, the small clever maneuvers become optional — sometimes you can solve the whole problem without them.

💬 Note from Doctor Luo: Let me also refute a widely repeated claim: “Doctor Zhu Danxi nourished yin and cleared heat — he harmed yang qi.” After all these cases, where exactly did Doctor Zhu Danxi harm yang qi? He leads with Renshen and Baizhu — does that look like harming yang? In the cases I have told so far, 90 percent of Doctor Zhu Danxi’s formulas use Renshen and Baizhu. The people repeating that slogan have probably never even opened his books. His philosophy: support the upright qi first, and always treat the sick person, not merely the disease. If you look only at the disease, a pile of heat-clearing, toxin-removing herbs comes out — he would not use them. Doctor Zhang Xichun also tonified the spleen when treating emotional illness; Doctor Li Dongyuan tonified the spleen and added ascending herbs; Doctor Zhu Danxi tonified the spleen and added blood-nourishing herbs — the core in every case is the spleen and stomach.

Bonus: your emotions and your gut microbiome are wired together

The most delightful part of this case is the closing reflection. Doctor Luo Dalun points out that the West is slowly recognizing the gut as the “second brain” — there is a kind of “brain” in the belly that registers emotions very clearly. And the gut teems with microorganisms and bacteria, which in turn influence our moods. When the spleen-stomach system is unhealthy, when the gut environment deteriorates and beneficial bacteria decline, your mood changes; and when your mood changes, it changes your gut flora again — the two run in a circle.

Researchers abroad have run wonderful experiments: transplant the fecal flora of a bold mouse into the gut of a timid mouse, and the timid one becomes bold — its very temperament changes. There is also the case of a cheerful mother whose gut flora, transplanted into her anxious, depressed daughter, changed the daughter’s disposition. Today, fecal-microbiota transplantation is being used to treat depression and autism with excellent results.

💬 Note from Doctor Luo: Our Chinese spleen-tonifying herbs are very likely ingredients that increase beneficial bacteria and help them multiply, while the damp-heat clearing Huanglian and Huangbai tend to kill off harmful bacteria. So the monarch-minister-assistant-courier structure of such formulas may well be “let the good bacteria flourish, keep the bad ones in check” — changing the flora ratio and thereby re-regulating the emotions. That is a principle the ancients articulated long ago. I once wrote an article on this, and even Western gut-microbiome specialists thought the idea was valuable and shared it. Research in this direction will bear fruit. So look at this patient again: the diarrhea stopped after taking the medicine — but that was only the surface. With spleen qi sufficient and upright qi strong, his emotional state improved dramatically — overthinking had harmed the spleen and stomach, and once his upright qi was full, he actually became more optimistic and less anxious. This is the reverse route to adjusting mood. Doctor Zhu Danxi treated the man’s whole state of being.

Compiled from Doctor Luo Dalun’s explanations of Doctor Zhu Danxi’s case records; the cases come from Ge Zhi Yu Lun and Danxi Xin Fa.