Diarrhea for Three Years and a Belly That Keeps Swelling?
Patient search terms: diarrhea for three years / long-term diarrhea / belly swelling bigger and bigger / growing weaker from diarrhea / diarrhea with unquenchable thirst
Medical terms for this condition: chronic diarrhea (jiu xie) · chang pi (severe draining diarrhea) · yin deficiency with internal heat (long-term diarrhea destroying yin) · spleen and stomach weakness
Opening: a jar of sweet “candy” cured three years of diarrhea
In the late Ming and early Qing dynasties, there was a child who had diarrhea for three entire years. His belly swelled up huge, and in the end he wheezed so badly he could not even lie flat; he was thin beyond recognition. Doctor after doctor looked at him, and finally one of them shrugged and pronounced: “Of ten patients with this disease, half live and half die” — whether he survived was entirely up to fate.
But what finally cured him was a jar of something sweet, like candy. The child ate that “candy” mouthful by mouthful — and in half a month, the illness was gone.
💬 Note from Doctor Luo: This is no folk remedy — it is a famous case recorded in Doctor Yu Jiayan’s Yu Yi Cao (Meaningful Words), titled “Treating Shen Ruozi’s Son’s Critical Long-Standing Diarrhea with Success.” Doctor Yu Jiayan had an interesting habit: he followed a rule — first discuss the illness, then prescribe the medicine. He would lay out the mechanism of the disease for you in perfectly plain terms, and only then write the prescription. The principle he “discussed” in today’s case is called xie jiu wang yin — prolonged diarrhea destroys yin. These four characters are an extremely important key to managing chronic diarrhea, and we are going to unpack them slowly today.
Who was the patient: a child who had had chickenpox
The patient was the son of Shen Ruozi (in classical Chinese, a man’s son was called his “nai lang”). He was still a child, and he had previously come down with chickenpox.
Having had chickenpox was, in Doctor Luo Dalun’s view, itself a signal:
💬 Note from Doctor Luo: In the old days, chickenpox was a disease almost everyone caught. What does having had chickenpox mean? It means the upright qi (zheng qi) was insufficient — the body already had a problem — so people who have had chickenpox especially need to be careful about food, drink, and daily routine, and not let the body be knocked about again. And this child, right after his chickenpox, ate and drank carelessly (yin shi bu jie) — spoiled his stomach, and the diarrhea began.
How it started: one bout of diarrhea dragged on into a critical illness
At first it was just diarrhea. But diarrhea that drags on makes the spleen deficient (pi xu); and with the spleen weakened, the child then caught malaria — attacks of chills and fever coming and going at regular intervals, the mark of a malaria infection. Malaria should have been properly nursed, but after it, the child developed abdominal pain and a swollen belly — and the swelling persisted for three years.
During those three years, the doctors saw the big belly and assumed there was stagnation inside, so they gave him dispersing, purging medicines (xiao dao yao) to push it out — but no matter how much of these medicines he took, the swelling and the diarrhea never improved.
💬 Note from Doctor Luo: Notice this line of thinking — the belly is swollen, so attack inward and drain outward. After three years of dispersing medicines, the child only grew weaker and the disease only grew worse. Last year the family finally changed doctors; this one did not use dispersing medicines but switched to Shen Ling Bai Zhu San (Ginseng, Poria and Atractylodes Powder) — and for a while there was a little improvement. But as soon as the doctor left, everything went back to how it was. Only then did they call in Doctor Yu Jiayan.
The diagnostic highlight: the illness began in bloating, and now chang pi had joined it — “half live, half die”
Doctor Yu Jiayan arrived and first “discussed” the case — in his terms, “yi” means to debate and analyze.
He put his finger on the root in one sentence: “This illness began in the bloating of the abdomen; now, on top of it, there is also chang pi.”
💬 Note from Doctor Luo: What is “chang pi”? It is the most severe kind of draining diarrhea — the qi of the large intestine becomes hollow and unable to hold anything; what the stomach sends down simply cannot be stopped in the intestines — “pi chu wu du” — it pours straight out, endlessly. What comes out is watery fluid with a fishy smell, but not stinking. Doctor Yu Jiayan said: in this kind of condition, “of ten patients, half live and half die” — frightening to hear, but placed against the reality of the time, the child truly had reached the critical gate.
Worse still, the disease was still advancing, and four new danger signals had appeared — the “four reversals” (si ni):
- First reversal — hot at dusk, cool at dawn: every evening he ran a fever; by morning the body cooled down again;
- Second reversal — desperate thirst, gulping down fluids: so thirsty he wanted water to save himself;
- Third reversal — wheezing so he could not lie on his back: his breathing was so labored that lying flat made it worse;
- Fourth reversal — profuse sweating, restless and uneasy: sweat pouring out, agitation without peace.
💬 Note from Doctor Luo: These four symptoms together tell you the child’s body was already gravely ill. But what makes Doctor Yu Jiayan great is that he explained from beginning to end why the child had become this ill — he analyzed it in two layers.
The first cause: prolonged diarrhea weakened the qi, and the scattered qi could not be gathered
Doctor Yu Jiayan said: In a healthy person, the qi of the abdomen turns and contracts normally, so the body feels light and the stools are normal. In this child, the diarrhea had gone on too long — the qi was depleted, scattered and unable to be gathered back (qi san bu shou). Because the qi could not hold, the belly swelled, the intestines gurgled audibly, and sometimes the stools leaked out without the child even knowing it.
💬 Note from Doctor Luo: When the qi has scattered to this degree, what would more water-draining, qi-moving dispersing medicines do? Wouldn’t they just add frost to snow? The qi grows weaker and more dissipated with each dose, and of course the disease grows worse. That is the first cause.
The second cause (the most crucial stroke in the whole case): prolonged diarrhea destroys yin!
The second cause is the heart of today’s case — xie jiu wang yin: prolonged diarrhea destroys yin.
💬 Note from Doctor Luo: Here I want to say a bit more, because many people cannot wrap their heads around it. Most of us, when we hear “chronic diarrhea,” immediately think of insufficient yang qi — so we warm the yang and tonify the spleen, and that is usually how it is treated. Doctor Yu Jiayan’s approach fills in the other half of the picture: when you pour and pour and the diarrhea drags on, what is damaged is not only yang — yin is damaged too. The jin ye (body fluids) leak out again and again, and the yin inside the body is drained thinner and thinner — that is “xie jiu wang yin.” Everyone, remember these four characters.
Doctor Yu Jiayan went on: in a healthy person, the ying and wei (nutritive and defensive qi) are in harmony, and yin and yang are not lopsided — when yang prevails one runs hot, when yin prevails one fears cold. When the child had malaria, cold and heat fought within him, and yin and yang were already out of tune; now, on top of that, prolonged diarrhea had drained his yin — the yin fluids in the body were exhausted. And so — a prairie fire, burning his own body. The deficiency fire inside blazed hotter and hotter, and the boy could only bring in outside water to put it out — that is why he was so terribly thirsty and always wanted to drink.
But here is the most deadly part: the water he drank could not become fluids inside his body.
💬 Note from Doctor Luo: Does drinking lots of water help a yin-deficient person? No. The water you drink cannot be converted into the jin ye (body fluids) your body can actually use — it is not enough to govern the formless fire. The fire still blazes, the thirst still burns, and the water you drink only adds to the draining from the organs: the belly swells more, the water pours out with the diarrhea, and every leak damages the yin further — the more diarrhea, the more thirst; the more thirst, the more diarrhea — a vicious circle, locked tight and unbreakable.
The mistakes of the earlier doctors: fragrant-drying herbs fanned the fire, qi-lowering herbs wounded the upright — both paths were wrong
Why had three years of treatment failed? Doctor Yu Jiayan pointed out, one by one, the wrong medicines the earlier doctors had used:
The first mistake: seeing the child weak, the doctors used fragrant, drying herbs (xiang zao zhi yao) — guan gui (cinnamon bark), rou dou kou (nutmeg) and the like — hoping to warm the yang and tonify the spleen. But the child was yin-deficient with blazing fire; fragrant-drying herbs fan the fire and steal the yin (zhu huo jie yin) — they were throwing kindling on the deficiency fire, making it burn hotter and hotter.
The second mistake: seeing the child wheeze, with qi rushing upward, they used mu xiang (costus root), bing lang (betel nut), su zi (perilla seed), da fu pi (areca peel), hou po (magnolia bark) and other qi-lowering medicines (jiang qi zhi yao). Doctor Yu Jiayan said: “You miu — this is even more absurdly wrong.”
💬 Note from Doctor Luo: Why? Doctor Yu Jiayan quoted a famous saying in Chinese medicine: the qi hai (sea of qi) of a man lies below the navel; it is the dwelling of the yuan qi (original qi), the root of life. Prolonged diarrhea had wounded the true qi; the qi was scattered and should have been gathered and held fast. But instead of returning to its place, this qi rushed upward and tipped over, refusing to go down — that is why the child snored and panted through the nose and could not lie on his back: this is the dangerous sign of the yuan qi being greatly depleted, the qi scattering outward. When the qi is already scattering, and you hit it with qi-lowering medicines to drive it downward — aren’t you just knocking apart the last bit of qi there is? As for the sweating and restlessness — that is the yin qi exhausted, the solitary yang unable to stay — the sign that the upright qi is about to desert the body.
Doctor Yu Jiayan put it in a picture: the child’s body right now was like a year with only warmth and no cold, only growth and no storage. A year with summer but no winter — how could such a body ever get well?
The prescription: clear dryness and moisten the lung — a jar of Ejiao, Rehmannia and Ophiopogon honey paste
The reasoning was laid out completely, and the father (Shen Ruozi) read it over carefully, found every sentence sound, and hurriedly sent someone to beg Doctor Yu Jiayan: please, please give the child medicine and save him!
The prescription Doctor Yu Jiayan wrote took a direction that surprised everyone — clearing dryness and moistening the lung: e jiao (donkey-hide gelatin), sheng di huang (raw Rehmannia), and mai men dong (Ophiopogon tuber), simmered with honey into three jin (about 1.5 kg) of paste.
💬 Note from Doctor Luo: There is e jiao again — e jiao moistens the lung; sheng di huang and mai men dong nourish yin and generate fluids; honey binds it all into a paste. Doctor Yu Jiayan took the nourishing-yin route: no qi tonics, no warming yang — first replenish the yin, and the deficiency fire naturally goes out; the fluids return, and only then can the body re-enter its normal circulation. Notice — at this stage he used not a single qi-tonifying herb. Qi can only be discussed after the yin has been restored.
The most delightful part was how the child took the medicine: the child had drunk bitter medicines for three years and was terrified of bitterness; this paste was sweet, just like candy — Rehmannia is naturally sweet, Ophiopogon has no strange taste, and neither does e jiao. The child tasted it and declared: this is candy! So he steamed and ate it more than ten times a day, calling out every little while — “I want candy!” — and then again, “I want candy!”
The turnaround: three jin of paste eaten in half a month, every symptom retreated
And so it went — in half a month, the child ate all three jin of the paste like candy.
And then — his bowel movements returned to normal, his body cooled, his breathing steadied, no more restlessness, no more draining — every symptom retreated.
💬 Note from Doctor Luo: The illness was cured. But Doctor Yu Jiayan was not finished — he prepared another spleen-regulating medicine (li pi yao) in powder form for aftercare: now that the yin had been restored, use gentle spleen-regulating herbs to build the spleen and stomach up completely. After that, the child recovered fully.
Doctor Luo’s closing note: prolonged diarrhea is not only yang deficiency — very often it damages yin
Having told this case, Doctor Luo Dalun shared a reflection:
💬 Note from Doctor Luo: I think this case is especially meaningful. In real life there are so many patients with long-term diarrhea, and how do we usually think about it? — warm the yang, tonify the spleen. But everyone must realize: prolonged diarrhea damaging yin is a critically important line of thinking. If you only understand warming yang and not nourishing yin, then with this disease you have only seen half the picture. Some cases are yang deficiency — but many others have had their yin damaged.
This line of thought, in fact, Zhang Zhongjing taught long ago:
💬 Note from Doctor Luo: Zhang Zhongjing’s Huang Lian E Jiao Ji Zi Huang Tang (Coptis and Donkey-Hide Gelatin Decoction with Egg Yolk) was made to treat conditions like dysentery with pus and blood — and e jiao is right there in the formula, precisely addressing what to do after yin has been damaged. Later generations of physicians pondered and supplemented this idea generation after generation, and by today our understanding of the “prolonged diarrhea damages yin” pattern is fairly complete. So this case looks simple, yet its principle is worth chewing over again and again: a person with year-round diarrhea, a belly that swells, and a body growing weak is not necessarily yang-excess needing warming — very often, he needs yin nourishment instead. Everyone, keep these four characters — “xie jiu wang yin” — firmly in your heart.
Compiled from Doctor Luo Dalun’s commentary on the case records of Doctor Yu Jiayan; the case is from Yu Yi Cao (《寓意草》 — “Meaningful Words”), under the title “Treating Shen Ruozi’s Son’s Critical Long-Standing Diarrhea with Success.”