Di Yu

What is Di Yu?

Di Yu (Sanguisorba officinalis root) is one of the most important hemostatic herbs in Traditional Chinese Medicine, used for over 2,000 years. It has a cool, bitter nature and is said to 'cool the blood and stop bleeding' — particularly for bleeding in the lower body. Beyond TCM, related species have been used in European and Indigenous American herbal traditions for similar wound-healing purposes.

How does Di Yu work?

Di Yu's rich tannin content — especially ellagitannins like sanguiin H-6 — tightens tissues and blood vessels, reducing bleeding and inflammation at wound sites. Its saponins and polyphenols have demonstrated antibacterial effects and help protect damaged skin from infection. Internally, these compounds help calm an irritated gut lining, reduce inflammatory signaling, and support normal blood clotting.

What forms does Di Yu come in?

In China, Di Yu is most commonly prepared as a decoction (boiled root tea) for internal use, or as a topical paste or ointment for burns and skin wounds. Capsules and granules are increasingly available for convenience. Topical preparations are often preferred for burn treatment in clinical settings.

Where it comes from:

Di Yu has been documented in the Shennong Bencao Jing (Divine Farmer's Classic of Materia Medica), one of the oldest Chinese herbal texts, placing its recorded use back roughly 2,000 years. It has been a go-to remedy in Chinese military and field medicine for treating battlefield wounds and burns, and remains a standard herb in modern TCM dermatology and gastroenterology.

What does Di Yu help with?

• Burns and wound healing: Di Yu's most celebrated modern clinical use is treating burns. Applied topically, its tannins form a protective layer over burned skin, reduce fluid loss, and fight bacteria that commonly infect wounds. Clinical use in China has shown it speeds up healing and reduces scarring compared to some conventional dressings.
• Rectal bleeding and hemorrhoids: This is Di Yu's classic internal use — it cools inflammation in the lower digestive tract and helps tighten blood vessels to reduce bleeding from hemorrhoids or intestinal irritation. It's a first-line herb in TCM formulas targeting bright-red rectal bleeding.
• Heavy menstrual bleeding: Di Yu is commonly included in TCM formulas for heavy periods caused by 'heat in the blood.' Its astringent and hemostatic properties help slow excessive menstrual flow, particularly when bleeding is heavy and accompanied by a sensation of heat.
• Bloody diarrhea and dysentery: Di Yu has traditional use for dysentery with blood in the stool. Its tannins reduce gut inflammation and its antimicrobial compounds help fight the bacterial causes of dysentery. Modern research supports antibacterial activity against organisms like E. coli and Shigella.
• Inflammatory bowel disease (colitis): Early clinical studies in China have explored Di Yu preparations for ulcerative colitis, finding reduced inflammation and mucosal healing. The herb's polyphenols help calm the overactive immune response in the gut lining that drives IBD symptoms.
• Skin inflammation and eczema: Applied topically, Di Yu soothes irritated, inflamed, or weeping skin conditions. Its anti-inflammatory and astringent effects help reduce redness and itch, and it has been studied in combination herbal formulas for eczema in China.
• Peptic ulcers and gastric bleeding: Di Yu's astringent tannins help protect the stomach lining and reduce minor gastric bleeding. In TCM, it is used when stomach heat causes bleeding, and preclinical studies support its ability to reduce gastric mucosal damage.
• Nosebleeds and minor bleeds: Applied topically or taken internally, Di Yu can help control minor surface bleeds and nosebleeds. Its vasoconstrictive and clot-supporting actions make it a practical first-aid herb in traditional practice.
• Bacterial skin and gut infections: Di Yu extracts have demonstrated meaningful antibacterial activity in laboratory and some clinical settings against common pathogens. This likely contributes to its effectiveness in treating infected burns and bacterial gut infections.

What can Di Yu help prevent?

• Burn wound infection (topical use reduces colonization by common bacteria)
• Progression of minor GI bleeding to more serious hemorrhage (with early use)

Which foods are rich in Di Yu?

Di Yu root is not found in the diet as a food ingredient. However, foods that share its key active compounds and support similar outcomes include: (1) Pomegranate — rich in ellagitannins and ellagic acid, the same tannin family responsible for Di Yu's astringent and anti-inflammatory effects; (2) Raspberries and strawberries — good sources of ellagic acid and gallic acid; (3) Walnuts and chestnuts — contain tannins and ellagic acid with similar tissue-protective properties; (4) Green tea — high in gallic acid and polyphenols that support gut lining health and reduce inflammation; (5) Red wine (in moderation) — contains ellagic acid and quercetin. A diet rich in polyphenol-dense berries, nuts, and teas supports the same anti-inflammatory and vascular-toning pathways that Di Yu targets.

What are the side effects of Di Yu?

• Nausea or stomach upset (with large doses)
• Constipation (tannins can be astringent to the bowel)
• Allergic skin reaction (rare, with topical use)
• Reduced iron absorption (if taken with meals or iron supplements)
• Not recommended in pregnancy without practitioner guidance

Good to know:

Di Yu is considered safe at standard TCM doses for short-to-medium-term use. Large oral doses can irritate the stomach. Topical use on very large burn areas (over 20% body surface) has raised theoretical concerns about tannin absorption, so large-area application should be medically supervised.

How much Di Yu should you take?

• Recommended daily: 6–15 g of dried root as a decoction (boiled in water); 2–4 g as powdered extract in capsule form; topical preparations applied 1–3 times daily to affected skin area.
• Best time of day: Decoctions are typically divided into two doses, taken morning and evening. Capsules can be taken with meals.
• With or without food: Best taken with or after food to minimize stomach irritation from tannins.
• Time to effect: Topical wound/burn effects: 3–7 days; internal hemostatic effects: 1–2 weeks; gut inflammation improvement: 2–4 weeks.
• How long to take it: Short-to-medium courses of 2–8 weeks are standard for acute bleeding or burn treatment. For chronic conditions like IBD, use under practitioner supervision with periodic reassessment. Avoid prolonged high-dose use without guidance.