In Traditional Chinese Medicine, Blood (血 xuè) is far more than the red fluid flowing through our veins. It is a dense, nourishing substance, intimately linked to Qi (气 qì), the Spirit (Shen 神) and the emotions. Blood imbalances — particularly Blood Deficiency and Blood Stasis — are responsible for several of the most common types of chronic headaches in TCM.
Blood in TCM: Definition and Origin
Blood (Xuè) is produced through the transformation of ingested food. According to the Huangdi Neijing (黄帝内经):
“The fertile centre of the Stomach produces Gu Qi (Food Qi). This Gu Qi rises to the Lungs. The Lungs circulate Qi through all the vessels. The Qi that transforms in the vessels becomes Blood.”
In practice, Blood production involves several organs:
| Organ | Role in Blood production |
|---|---|
| Spleen (脾 pí) | Transforms and transports food → produces Gu Qi |
| Stomach (胃 wèi) | “Sea of Food”, first transformation |
| Heart (心 xīn) | Governs Blood, propels it through the vessels |
| Liver (肝 gān) | Stores Blood, regulates its volume according to activity |
| Kidney (肾 shèn) | Kidney Essence (精 Jīng) can transform into Blood |
The Functions of Blood in TCM
1. Nourish and Moisten (濡养 rúyǎng)
Blood transports nutrients to all tissues, organs, tendons and muscles. Abundant Blood is visible in the complexion, nails, hair and eyes.
2. Anchor the Spirit (Shen 神)
Blood is the “substrate” of the Spirit. Abundant Blood = stable Spirit, serene sleep, balanced emotions. Blood Deficiency = anxiety, insomnia, palpitations, invasive thoughts.
3. Maintain Movement with Qi
Blood and Qi are inseparable: “Qi is the commander of Blood; Blood is the mother of Qi.”
- Qi propels Blood through the vessels
- Blood nourishes the organs that produce Qi
The Two Major Blood Imbalances
Blood Deficiency (血虚 Xuè Xū)
Blood Deficiency occurs when Blood is insufficient to nourish the body.
Causes:
- Diet poor in nourishing foods (uncompensated strict vegans)
- Significant blood loss (heavy periods, haemorrhages)
- Prolonged overwork depleting reserves
- Spleen Deficiency (poor Gu Qi production)
- Chronic illness consuming Blood
Clinical signs:
| Area | Manifestations |
|---|---|
| Complexion | Pale, dull, lacklustre |
| Nails | Pale, brittle, ridged |
| Eyes | Blurred vision, dry eyes, floaters |
| Muscles | Cramps, numbness, limbs falling asleep |
| Sleep | Insomnia, many dreams |
| Periods | Short cycle, light and pale flow |
| Emotions | Mild anxiety, unfounded fear |
Blood Deficiency headache (syndrome 15): Dull, mild pain at the vertex, worsening in the afternoon and evening, relieved by lying down. More common in women, especially after menstruation.
Foods to nourish Blood:
| Food | TCM property | Practical note |
|---|---|---|
| Beetroot | Nourishes Blood, red colour = affinity with Blood | 2-3 times/week |
| Liver (chicken, beef) | Directly nourishes Liver Blood | Small quantities, once/week |
| Red meat (beef) | Tonifies Blood | Slow cooking to preserve |
| Goji berries (枸杞 Gǒu Qǐ) | Nourishes Blood and Liver Yin | 15-20 berries/day |
| Longan (龙眼 Lóng Yǎn) | Nourishes Blood, calms Spirit | 5-10 fruits/day |
| Black sesame (黑芝麻) | Nourishes Blood and Kidney Essence | 1 tablespoon/day |
| Spinach | Nourishes Blood, moistens | Cooked, not raw |
| Red dates (大枣 Dà Zǎo) | Tonifies Qi and Blood | 5-7 dates/day |
Blood Stasis (血瘀 Xuè Yū)
Blood Stasis refers to disrupted, slowed or blocked Blood circulation in certain areas.
Causes:
- Old trauma (impacts, falls, accidents)
- Prolonged Qi Stagnation (Qi propels Blood: if Qi stagnates, Blood stagnates)
- Internal Cold (Cold contracts and freezes the vessels)
- Intense Heat (dries Blood and makes it viscous)
- Qi Deficiency (insufficient propelling force)
Clinical signs:
| Sign | Description |
|---|---|
| Pain | Fixed, boring, stabbing |
| Complexion | Dark, purplish, pigmented spots |
| Tongue | Purple, petechial spots |
| Pulse | Rough (涩 sè), difficult to perceive |
| Vessels | Varicose veins, spider veins, visible veins |
| Periods | Dark clots, dysmenorrhoea |
Blood Stasis headache (syndrome 12): Very chronic headaches, severe, fixed, boring or stabbing pain. Often linked to old head trauma. It signals blocked circulation in the brain’s vessels.
Foods to move Blood and dissolve Stasis:
| Food | TCM action | Use |
|---|---|---|
| Turmeric (姜黄) | Moves Qi and Blood, dissolves Stasis | Daily, with pepper |
| Fresh ginger | Moves Blood | Cooking, decoctions |
| Onion | Moves Blood | Cooked, daily |
| Garlic | Mobilises Blood | Raw or cooked |
| Vinegar (醋 cù) | Enters the Liver, moves Blood | As seasoning |
| Aubergine | Moves Blood, cools | Cooked |
| Water chestnut | Moves, cools | Cooked |
Blood and Diet: Practical Principles
For Blood Deficiency
- Eat warm: Blood Deficiency is often accompanied by Yang Deficiency — cold slows Blood production
- Red/black coloured foods: Five Elements correspondences (red = Heart/Blood; black = Kidney/Essence)
- Slow cooking: Stews, broths, casseroles — extract maximum nourishing nutrients
- Avoid raw foods: Raw foods cool the Spleen and reduce Blood production
- Quality animal protein: Essential (in TCM, flesh nourishes flesh)
For Blood Stasis
- Mobilising spices: Turmeric, ginger, pepper
- Avoid cold: Ice cream, cold drinks freeze circulation further
- Move: Gentle exercise (qi gong, walking) helps Qi propel Blood
- Vinegar: 1 tablespoon in dressings — direct action on Liver and Blood
- Avoid saturated fats: Promote Blood viscosity
The Qi-Blood Relationship in Headaches
Understanding Blood is inseparable from understanding Qi. In the 16 headache syndromes in TCM, we find:
| Syndrome | Dominant imbalance |
|---|---|
| 12. Blood Stasis | Stagnant Blood blocking cerebral vessels |
| 14. Qi Deficiency | Insufficient Qi to propel Blood to the head |
| 15. Blood Deficiency | Insufficient Blood to nourish the brain |
| 10. Yang + Phlegm | Qi and Blood disturbed by Yang rising |
Treating Blood without considering Qi (or vice versa) is insufficient. In TCM, the most effective formulas always combine Qi and Blood tonics (like the classic Si Wu Tang, 四物汤) or Qi and Blood movers (like Xue Fu Zhu Yu Tang, 血府逐瘀汤).
FAQ on Blood in TCM
What is the difference between Blood in TCM and blood in Western medicine? In Western medicine, blood is a liquid tissue measured by components (haemoglobin, platelets, etc.). In TCM, Blood (Xuè) is a functional substance that nourishes, anchors the Spirit and circulates with Qi. The two views partially overlap: anaemia often corresponds to Blood Deficiency, and coagulation disorders evoke Stasis. But TCM also integrates emotional and spiritual dimensions.
How do I know if I have Blood Deficiency? Characteristic signs: pale or dull complexion, pale and brittle nails, blurred vision, dizziness on standing, nocturnal cramps, insomnia with many dreams, mild anxiety. In women, light periods with pale blood are a strong sign. Blood Deficiency headaches are dull, at the vertex, worsening in the late afternoon.
Is turmeric really effective against Blood Stasis? Yes. Turmeric (姜黄 Jiāng Huáng) is one of the most powerful foods in the Chinese dietary pharmacopoeia for dissolving Stasis. Its curcumin has scientifically validated anti-platelet aggregation and anti-inflammatory action, which aligns with the TCM action of “moving Blood”. It should be combined with black pepper to maximise absorption.
To understand the complementary role of Qi in these processes, consult our article Qi in TCM. For practical applications to headaches, see our guide to headaches in Chinese dietetics. The Yin Shi app helps you identify foods suited to your imbalance.