Where Does Acupuncture Actually Act?

針灸真的在「刺哪裡」？——從現代組織學看針灸最關鍵的作用層：疏鬆結締組織

Many people believe that acupuncture directly “cuts through fascia” or treats a specific anatomical structure.

很多人以為針灸是直接「刺斷筋膜」或「治療某個特定結構」，

However, the core effect of acupuncture is not direct repair of a single tissue.

但其實針灸的核心作用不是針對單一組織的直接修補，

Instead, acupuncture improves the local microenvironment by modulating the physical and physiological state of loose connective tissue and the extracellular matrix (ECM), making self-repair, circulation, and regulation easier to occur.

而是透過調節「疏鬆結締組織與細胞外基質（ECM）的物理與生理狀態」，來改善整個局部微環境，讓身體的自我修復、循環與調節更容易發生。

This statement is the most important key to understanding modern acupuncture science.

這句話，就是理解現代針灸科學最重要的一把鑰匙。

Today, we will examine step by step from a histological perspective why loose connective tissue is the true primary battlefield of acupuncture.

今天我們就從組織學的角度，一步步來看：為什麼「疏鬆結締組織」才是針灸真正的主戰場？

I. The Tissue Most Commonly Encountered by Acupuncture Needles

After the needle passes through the epidermis and dermis, it next enters areolar connective tissue.

當針尖穿過表皮、真皮之後，接下來進入的，正是疏鬆結締組織（又稱蜂窩組織、areolar tissue）。

The characteristics of this tissue include the following:

這裡的特徵是：

• Fibers are arranged very loosely.

• 纖維排列非常鬆散

• It contains a large amount of ground substance.

• 充滿大量的基質（ground substance）

• It is rich in blood vessels, lymphatic vessels, immune cells, and nerve endings.

• 富含血管、淋巴管、免疫細胞、神經末梢

This layer is also where acupuncture most easily produces the sensation known as “deqi.”

這一層正好是針刺最容易產生「得氣」感覺的地方——

Sensations such as soreness, numbness, distension, heaviness, and a feeling of flow mostly originate from mechanical stimulation and neural responses in this tissue.

那種酸、麻、脹、重、流動感，大多來自這裡的機械刺激與神經反應。

II. How Acupuncture Influences Loose Connective Tissue

During chronic pain, adhesions, or postoperative tightness, the ground substance often becomes viscous, tissue gliding decreases, and circulation is affected.

慢性疼痛、沾黏、術後緊繃時，基質常變得黏稠，組織滑動性變差，循環也跟著受影響。

The micromechanical stimulation of acupuncture needles can:

針刺的微小機械刺激，可以：

• Alter ECM tension and viscoelasticity.

• 改變ECM的張力與黏彈性

• Promote local fluid exchange.

• 促進局部液體交換

• Improve microcirculation and lymphatic return.

• 改善微循環與淋巴回流

Many patients report feeling suddenly looser, warmer, or experiencing improved flow after treatment.

很多人刺完會說：「怎麼突然覺得鬆了、熱了、流動感變好？」

This reflects the reactivation of extracellular matrix fluidity.

這背後就是基質流動性被「喚醒」的結果。

III. Regulation of Local Immune Cell Activity

Loose connective tissue naturally contains a large number of immune cells such as macrophages, mast cells, and leukocytes.

疏鬆結締組織本來就住著大量免疫細胞：巨噬細胞、肥大細胞、白血球等。

Acupuncture does not directly kill pathogens or suppress inflammation.

針灸並非直接殺菌或消炎，

Instead, through neuro-immune interactions, it helps regulate chronic low-grade inflammation and balance the repair environment.

而是透過神經–免疫軸的互動，幫助調節慢性低度發炎，讓修復環境更平衡。

IV. Nerves, Connective Tissue, and Pain Regulation

This tissue layer contains a high density of nerve endings.

這一層神經末梢非常密集。

After needle stimulation, local sensory nerves can be influenced, activating central and peripheral pain modulation mechanisms.

針刺刺激後，可以影響局部感覺神經，進而啟動中樞與周邊的疼痛調節機制。

Many chronic pain conditions are not caused by structural damage but by deterioration of the tissue microenvironment combined with neural hypersensitivity.

很多慢性疼痛其實不是「結構壞掉」，而是「組織微環境惡化＋神經過度敏感」的結果。

Acupuncture assists in resetting this sensitivity.

針灸就是在幫忙「重新設定」這個敏感度。

V. The Relationship Between Adipose Tissue and Acupuncture

Adipose tissue is not only an energy storage site but also an active endocrine organ.

脂肪組織不只是儲存能量，它還是個活躍的內分泌器官，

It secretes inflammatory and anti-inflammatory factors and influences local pressure and circulation.

會分泌各種發炎或抗發炎因子，也會影響局部壓力與循環。

In metabolic syndrome or chronic compression, adipose tissue itself may become a source of inflammation.

在代謝症候群、慢性壓迫的情況下，脂肪組織本身可能成為發炎來源。

The role of acupuncture here is supportive.

針灸在這裡的角色是輔助：

• Improving local circulation.

• 改善局部循環

• Influencing neuro-endocrine regulation.

• 影響神經–內分泌調節

• Supporting overall lifestyle adjustments alongside exercise and diet.

• 搭配運動與飲食，作為整體生活調整的支持

Important reminder: acupuncture is not a method for fat loss or direct treatment of fatty liver disease; rather, it serves as a supportive tool for optimizing the local and systemic physiological environment.

重要提醒：針灸不是減脂或直接治療脂肪肝的方法，它只是個很好的「環境優化」工具。

Clinical Summary

From a modern histological perspective, a significant portion of acupuncture’s adjunctive effects comes from modulation of loose connective tissue and the ECM microenvironment.

從現代組織學來看，針灸很大一部分輔助效果，來自於對「疏鬆結締組織與ECM微環境」的調節，而非針對單一結構的修補。

Situations Where Acupuncture Is Particularly Suitable as Adjunct Therapy

• Chronic myofascial pain

• 慢性肌肉筋膜疼痛

• Recovery phase after sports injuries

• 運動傷害恢復期

• Non-acute postoperative or post-traumatic recovery

• 術後或外傷後的非急性恢復

• Discomfort related to chronic low-grade inflammation

• 慢性低度發炎相關不適

• Individuals with poor circulation, swelling, or pronounced tightness

• 明顯循環差、腫脹、緊繃感的人

These applications are adjunctive and do not replace conventional medical care.

這些都屬於輔助治療，不是取代正規醫療，而是讓身體的自我療癒更容易啟動。

Medical Disclaimer: This article is for educational purposes only and does not constitute medical diagnosis or treatment.
醫療聲明：本文僅作為教育與學術說明，不構成醫療診斷或治療建議。