Hong Hua (红花) — TCM Herb for Blood Stasis, Dysmenorrhea & Cardiovascular Health

At a Glance

Herb: Hong Hua
Chinese name: 红花 (Hóng Huā)
Latin name: Carthami Flos
Nature: Warm
Taste: Acrid
Meridian: Heart / Liver
Category: Herbs that Invigorate Blood and Dispel Blood Stasis
Introduction: 红花 (Hóng Huā, Safflower) is the dried tubular floret of Carthamus tinctorius, an annual herb in the Asteraceae family cultivated in Xinjiang, Sichuan, Yunnan, and Henan provinces. The flowers are harvested in summer when they turn from yellow to bright red, then dried in shade. The vivid crimson colour comes from carthamin (红花素), a water-soluble pigment historically used as a fabric dye as well as a medicine.
In TCM theory, Hong Hua invigorates blood and removes stasis, and unblocks the meridians. It is one of the most powerful blood-invigorating herbs, operating primarily in the heart and liver blood systems. The classical principle states that small doses (3–5g) nourish blood while large doses (9–15g) dispel stasis — reflecting a dose-dependent shift between its tonic and dispersing effects.

Hong Hua’s inseparable clinical partner is Tao Ren (Peach Kernel). Together they form the blood-invigorating core of Xue Fu Zhu Yu Tang, Tao Hong Si Wu Tang, and dozens of other formulas addressing blood stasis in the chest, abdomen, uterus, and limbs. Hong Hua is also used topically in tinctures and liniments for traumatic injury, fractures, and joint pain.

Invigorates blood and removes stasis (活血化瘀): For blood stasis throughout the body — chest bi, dysmenorrhea, amenorrhea, post-partum stasis, traumatic injury.
Unblocks the meridians (通经活络): For numbness, paralysis, and pain from blood stasis obstructing the meridians — post-stroke, cold bi with stasis.
Relieves pain (止痛): Synergistically with other blood-invigorating herbs for stasis pain anywhere in the body.
Nourishes blood (小量养血): Small doses (1–3g) provide a mild blood-nourishing action without strong dispersal.

Clinical Application:
Blood stasis chest pain and angina: With Dan Shen, Chuan Xiong, Tao Ren
Dysmenorrhea and amenorrhea: With Tao Ren, Dang Gui, Chi Shao (Tao Hong Si Wu Tang)
Post-partum lochia retention: With Pu Huang, Wu Ling Zhi, Yi Mu Cao
Post-stroke rehabilitation: With Di Long, Huang Qi, Chuan Xiong (Bu Yang Huan Wu Tang)
Traumatic injury topical: Hong Hua tincture applied externally
Skin discolouration from stasis: Small doses in tonic blood formulas
Dosage: 3–10g in decoction. Small dose (1–3g) for blood nourishing; larger dose (9–15g) for strong stasis dispersal. Soak briefly in warm water before adding to decoction for fuller extraction.

Contraindicated in pregnancy — stimulates uterine contractions; can cause miscarriage. Contraindicated in bleeding disorders without blood stasis. Large doses may cause excessive bleeding — do not exceed 15g without supervision. Drug interaction: may potentiate anticoagulants (warfarin, aspirin). Use cautiously in yin deficiency with blood deficiency without stasis.

Xue Fu Zhu Yu Tang (血府逐瘀汤): Tao Ren, Hong Hua, Dang Gui, Sheng Di, Chi Shao, Chuan Xiong, Chai Hu, Zhi Ke, Jie Geng, Niu Xi, Gan Cao.
Tao Hong Si Wu Tang (桃红四物汤): Shu Di, Bai Shao, Dang Gui, Chuan Xiong, Tao Ren, Hong Hua — gynaecological blood stasis with deficiency.
Bu Yang Huan Wu Tang (补阳还五汤): Huang Qi, Dang Gui, Chi Shao, Di Long, Chuan Xiong, Hong Hua, Tao Ren — post-stroke hemiplegia.

Hong Hua + Tao Ren: The cardinal blood-invigorating pair; for blood stasis anywhere — chest, uterus, limbs, abdomen. Source: Xue Fu Zhu Yu Tang (血府逐瘀汤), Tao Hong Si Wu Tang (桃红四物汤).
Hong Hua + Dang Gui: Invigorates and nourishes blood simultaneously; for blood stasis with deficiency in gynaecology. Source: Tao Hong Si Wu Tang (桃红四物汤).
Hong Hua + Dan Shen: Dual cardiovascular blood-invigorating action; for chest bi and coronary disease. Source: Modern cardiovascular formulas.
Hong Hua + Di Long: Unblocks meridians, promotes post-stroke recovery; for hemiplegia from wind-stroke with blood stasis. Source: Bu Yang Huan Wu Tang (补阳还五汤).
Hong Hua + Su Mu: Invigorates blood, reduces swelling, relieves trauma pain; for fracture and contusion. Source: Classical trauma formulas.

Kai Bao Ben Cao (《开宝本草》): ‘Governs post-partum blood dizziness with lockjaw, incomplete expulsion of malign blood in the abdomen with cramping pain, dead fetus in the womb — all taken boiled in wine; also governs gu toxin with rectal bleeding.’
Ben Cao Gang Mu (《本草纲目》): ‘Activates blood, moistens dryness, stops pain, disperses swelling, and frees the menses.’
Ben Cao Yan Yi Bu Yi (《本草衍义补遗》): ‘Small dose nourishes blood; large dose moves blood. Excessive use causes incessant blood flow — this speaks of its fierce power.’