Loose unformed stools after cold food, persistent fatigue, sallow complexion, bloating after meals, a tongue that is pale with scalloped edges — this cluster points unmistakably to Spleen deficiency (Pi Xu) in TCM. The Spleen's core functions are transforming and transporting: it converts food into Qi and Blood and regulates fluid metabolism. When Spleen function declines, food stagnates and fluids accumulate internally, creating the vicious cycle of "Spleen deficiency generates Dampness; Dampness aggravates Spleen deficiency; Dampness causes diarrhoea." Unlike simply stopping diarrhoea with anti-motility drugs, TCM addresses this by simultaneously strengthening the Spleen and draining Dampness — treating both root and branch. This guide compares seven methods across formulas, dietary therapy, and external treatment, matched to three common sub-patterns.

I. Three Sub-Patterns: Identify Yours First

1. Spleen Qi Deficiency (most common) — poor diet, overwork
Recurring loose unformed stools; poor appetite; bloating after meals; fatigue; sallow complexion; pale tongue with white coating; moderate weak pulse. Long-standing cases may also show anal prolapse or bearing-down sensation.

2. Spleen Yang Deficiency — develops from Qi deficiency, or cold-damp exposure
Pre-dawn diarrhoea (Wu Geng Xie, "cock-crow diarrhoea") — abdominal pain waking the patient before sunrise, urgency, and relief after defecation; stool containing undigested food; pronounced cold aversion; cold limbs; abdominal cold-pain relieved by warmth; pale swollen tongue with white slippery coating; deep slow pulse. Often co-exists with Kidney Yang deficiency (cold lower back).

3. Spleen Deficiency with Dampness Excess — humid environments, fatty diet
Sticky unformed stool adhering to the toilet; abdominal bloating with a wrapped, heavy feeling; sticky mouth; poor appetite; heavy head and limbs; white greasy tongue coating; soggy slow pulse. Prolonged Damp-stagnation can generate Heat, shifting the coating to yellow-greasy.

II. Seven Methods Compared

A. Classical Formulas (for moderate-to-severe or chronic cases)

1. Shen Ling Bai Zhu San — first choice for Spleen Qi Deficiency + Dampness (Tai Ping Hui Min He Ji Ju Fang)
Core function: supplement Qi, strengthen Spleen, leach out Dampness, stop diarrhoea. Addresses both Spleen Qi deficiency and Damp excess simultaneously — the most broadly applicable formula for Spleen-deficiency diarrhoea.
Pattern: sticky loose stool, bloating, poor appetite, fatigue, sallow complexion; pale swollen tongue with white greasy coating, soggy pulse.
Composition: Lian Zi Rou, Yi Yi Ren, Sha Ren, Jie Geng, Bai Bian Dou, Fu Ling, Dang Shen, Bai Zhu, Shan Yao, Zhi Gan Cao.
Use: decoction once daily in two warm doses; patent powder/pill/capsule (6–9g twice daily after meals).
Advantages: gentle and well-balanced; treats both cause and symptoms; minimal side effects; suitable for prolonged use; also improves overall constitution. Limitations: slow to take effect (1–2 weeks); unsuitable for acute diarrhoea.

2. Li Zhong Tang (Wan) — first choice for Spleen Yang Deficiency (Shang Han Lun)
Core function: warm the Middle, strengthen Spleen, scatter Cold, stop diarrhoea. Directly addresses Yang deficiency — insufficient warming force causing pre-dawn diarrhoea.
Pattern: pre-dawn diarrhoea, stool with undigested food, cold aversion and cold limbs, abdominal cold-pain, pale swollen tongue with white slippery coating, deep slow pulse.
Composition: Dang Shen, Gan Jiang, Bai Zhu, Zhi Gan Cao. Gan Jiang dose can be increased with more pronounced cold aversion.
Patent pill: 6–9g twice daily (before meals improves absorption).
Advantages: targeted and effective for Yang-deficiency diarrhoea; quickly relieves pre-dawn urgency. Limitations: warming nature; contraindicated in Yin-deficiency or Heat patterns (dry mouth, hot palms, red tongue).

3. Tong Xie Yao Fang — first choice for Liver-Spleen Disharmony diarrhoea (Dan Xi Xin Fa)
Core function: soothe Liver, strengthen Spleen, relieve cramping, stop diarrhoea. Targets the pattern where emotional stress causes Liver Qi to over-control Spleen, triggering bowel urgency.
Pattern: diarrhoea triggered or worsened by emotional upset (anger, anxiety, stress); intestinal rumbling and cramping; pain relieved by defecation; chest tightness and frequent sighing; pale red tongue with thin greasy coating; wiry pulse.
Composition: Bai Zhu, Bai Shao, Chen Pi, Fang Feng. Can add Chai Hu and Yu Jin for pronounced emotional depression; add Fu Ling and Yi Yi Ren for marked Dampness.
Advantages: highly specific for emotion-triggered diarrhoea (IBS-D); addresses Liver and Spleen simultaneously; no dependency. Limitations: limited Damp-draining capacity; needs combination with Damp-draining herbs in Damp-heavy cases.

B. Dietary Therapy (for all patterns; mild cases; daily maintenance)

4. Pattern-matched dietary therapy
Core principle: favour warm, soft, easily digestible foods that support Spleen function. Strictly avoid cold, raw, oily, and spicy foods.

Universal recipes (all patterns):
• Millet-Yam Congee: millet 100g soaked 30 min + fresh yam 100g cubed; slow simmer 30 min. Yam strengthens Spleen and astringes; millet harmonises Stomach.
• Gorgon-Lotus Congee: Qian Shi (gorgon seed) + Lian Zi (lotus seed), both pre-soaked 4 hours, simmer with rice 40 min. Strengthens Spleen, stops diarrhoea, calms the Spirit.

Pattern-specific:
• Spleen Qi Deficiency: red dates, longan, chicken, yam; Huang Qi-Red Date tea (Huang Qi 10g + red dates 5, simmered).
• Spleen Yang Deficiency: fresh ginger, chive, lamb; Ginger-Date tea with brown sugar.
• Damp excess: Yi Yi Ren (job's tears), Chi Xiao Dou (adzuki bean); Yi Yi Ren-Adzuki water (30g + 20g, pre-soak, simmer, drink as tea).

Advantages: safe, gentle, no side effects; simple to prepare; suitable for long-term daily maintenance; also supports general constitutional improvement. Limitations: insufficient alone for moderate-to-severe diarrhoea; works best as adjunct to formula treatment.

C. External Therapies (for all patterns; for those who prefer not to take medicine)

5. Moxibustion
Core function: warm Yang, strengthen Spleen, scatter Cold and Dampness, stop diarrhoea and abdominal pain. Particularly effective for Spleen Yang Deficiency and Spleen Qi Deficiency with cold signs.
Key acupoints: Zu San Li (ST36, 3 cun below outer knee), Zhong Wan (CV12, 4 cun above navel), Shen Que (CV8, navel), Pi Shu (BL20, 1.5 cun lateral to T11 spinous process).
Method: moxa box or warm-needle moxa; 10–15 min per point; daily or every other day; 10 sessions per course. For pronounced Yang deficiency: ginger-separated moxa on Shen Que (slice of fresh ginger with holes, moxa cone on top).
Advantages: no oral medication required; no side effects; suitable for home use; effective for cold-type diarrhoea. Cautions: avoid on broken skin or with bleeding disorders; warm the body first; do not shower for 1–2 hours after.

6. Acupoint Massage
Core function: stimulate Spleen-Stomach meridians, move Qi and Blood, harmonise Stomach, stop diarrhoea and bloating. Tool-free and convenient — can be performed anywhere.
Method:
• Zu San Li: thumb pressure 1–2 min, firm but comfortable, 2–3 times daily. Strengthens Spleen-Stomach, supplements Qi, drains Dampness.
• Shen Que: palm clockwise circular massage around navel, 5–10 min, 1–2 times daily. Warms channels, disperses Cold, stops diarrhoea.
• Pi Shu: palm friction on back bilateral Pi Shu area, 3–5 min daily. Strengthens Spleen Qi, drains Dampness.

7. Abdominal Heat Compress
Core function: warm Yang and scatter Cold, relieve abdominal cramping and diarrhoea. Fastest external method for acute onset cold-triggered diarrhoea.
Method: hot water bottle, heat patch, or warm damp towel applied over the navel; temperature comfortable-warm (not burning); 15–20 min, 2–3 times daily. For acute onset: 10–15 min can relieve pain and urgency rapidly.
Advantages: simplest method; immediate symptomatic relief; suitable for cold-exposure or cold-food-triggered diarrhoea. Limitations: symptomatic only; requires concurrent formula or dietary treatment for sustained benefit.

III. Seven Methods at a Glance

IV. Essential Cautions

Pattern accuracy first: Using cooling foods (Yi Yi Ren, Chi Xiao Dou water) for Spleen Yang deficiency will worsen cold-type diarrhoea. Using only warming therapy for Liver-Spleen disharmony ignores the emotional root. Always identify your pattern before selecting a method.

Dietary prohibitions: Avoid cold and raw foods (ice cream, raw salad, cold drinks, water melon, kiwi); fatty and fried foods; spicy foods; sweet and sticky foods (cakes, sugar drinks). These directly damage Spleen Yang or generate Dampness. Even a single violation during treatment can reset progress.

Formula use: Formulas with warming herbs (Li Zhong Tang) require practitioner supervision; do not self-adjust Gan Jiang dosage. Formula treatment is not a permanent solution — once diarrhoea resolves, shift to dietary therapy and lifestyle adjustment for consolidation.

Seek medical evaluation if: diarrhoea contains blood or mucus; persists more than 1 month without improvement; accompanied by rapid weight loss, severe abdominal pain, fever, or pallor. Rule out inflammatory bowel disease, colorectal malignancy, and chronic infectious causes before proceeding with TCM maintenance.

Diarrhoeal disease / Irritable Bowel syndrome Conclusion

In cases of diarrhea, including diarrhea in children, the symptoms of diarrhea may range from acute diarrhea and severe diarrhea to persistent diarrhea, diarrheal disease, diarrhoeal disease, infectious diarrhea, osmotic diarrhea, secretory diarrhea, bloody diarrhea, antibiotic-associated diarrhea, and diarrheal episodes characterized by loose or liquid stools and abnormal bowel movement. These can be triggered by food or water contamination, bacterial infections, bacterial infection, food poisoning, vomiting, or other factors, leading to dehydration, risk of dehydration, signs of dehydration, and even severe dehydration. Additional related conditions include irritable bowel syndrome and inflammatory bowel disease. While many episodes last for a few days and can be prevented through hand washing, improved sanitation, and hand washing with soap, patients should always call your healthcare provider or consult a healthcare provider promptly. Conventional measures may include antibiotic treatment, bismuth subsalicylate, oral rehydration therapy, and oral rehydration solution. In Traditional Chinese Medicine, spleen deficiency diarrhea is effectively addressed by tonifying the spleen, strengthening qi, and stopping diarrhea with classical herbal formulas.