The Pericardium in Chinese medicine

The Pericardium (Xin Bao, 心包) is the “Heart Protector” in Chinese medicine — the sheath around the Heart that takes the impact of external pathogens before they reach the Emperor organ itself. Functionally, the Pericardium shares the Heart’s responsibilities for circulating Blood, housing the Shen (mind) and governing the chest. Many of the clinical syndromes that look as if they involve the Heart — Phlegm misting the mind, Heat invading the chest, palpitations from anxiety — are formally pathologies of the Pericardium absorbing pathogenic influence on the Heart’s behalf. The PC 6 (Neiguan) point on the inner wrist is one of the most widely-used acupuncture points worldwide for nausea, vomiting and chest discomfort. Paired with the Triple Burner; element Fire (Minister Fire); season summer; relates to the Heart in function.

Functions of the Pericardium

1. Protects the Heart — absorbs external pathogenic influence (Heat, Wind-Heat, Phlegm) that would otherwise disturb the Shen; classical febrile-disease theory treats the Pericardium as the first internal organ pathogens reach in serious illness
2. Governs Blood and vessels (with the Heart) — the Pericardium shares the Heart’s pumping and circulating function; many cardiovascular symptoms are formally Pericardium pathology in TCM
3. Houses the Shen (with the Heart) — mental clarity, emotional calm and clear consciousness depend on a settled Pericardium-Heart axis
4. Regulates the chest — the Pericardium channel governs chest fullness, pressure, palpitations and the broader sense of constraint between the breasts

Pericardium and Triple Burner pair

The Pericardium is paired with the Triple Burner as the Minister-Fire couple (distinct from the Heart-Small Intestine Sovereign-Fire couple). Both are functional rather than discrete anatomical organs in TCM. The Pericardium-Triple Burner pairing governs the diaphragmatic membranes, the broad regulation of fluid passage through the three burners, and the general circulatory-thermal homeostasis of the body. Disharmonies in this pair frequently present with both emotional (chest constraint, anxiety) and physical (Damp-Heat, irregular fluid distribution) features.

Common patterns of Pericardium disharmony

1. Heat invading the Pericardium — in serious febrile illness: high fever with delirium, agitation, restlessness, red tongue, rapid pulse. Classical pattern in heat-stroke and septic encephalopathy
2. Phlegm misting the Pericardium — confused thinking, unclear consciousness, mental dullness, vivid disturbing dreams; the TCM picture in some chronic mental illness, post-stroke confusion and dementia presentations
3. Heart-Pericardium Blood stasis — chest pain, palpitations, purple lips and tongue, anxiety; the TCM picture in angina and chronic ischaemic heart disease
4. Pericardium-channel constraint — chest fullness or pressure between the breasts, costochondral discomfort, palpitations from emotional cause, anxiety with a knot in the chest
5. Rebellious Stomach Qi treated via the Pericardium — nausea, vomiting, motion sickness, morning sickness and chemotherapy-induced nausea respond strongly to PC 6 because the Pericardium channel governs the upper jiao and the chest

Conditions on this site relating to Pericardium disharmony

Anxiety with chest tightness and palpitations, insomnia with vivid dreams, panic attacks, morning sickness, chemotherapy-induced nausea, motion sickness, post-stroke confusion, post-cardiac-event recovery, angina (alongside cardiology care), costochondritis, and the emotional chest constraint that frequently accompanies depression and chronic stress.

Treatment principles for the Pericardium

Core acupuncture points include PC 6 (Neiguan) — the Inner Pass, one of the most clinically used points in the world: for nausea, vomiting, chest pain, palpitations, anxiety, insomnia, and the Confluent (Master) point of the Yin Wei vessel; PC 7 (Daling) the Yuan-source point, calms the Shen, treats palpitations and chest tightness; PC 8 (Laogong) the Spring of Fire, clears Heart-Heat, calms anxiety, used for the “burning palms” of Yin deficiency; PC 9 (Zhongchong) at the fingertip for emergency revival and clearing Heat from the Pericardium; CV 17 (Shanzhong) the Front-Mu of the Pericardium, central to chest constraint and emotional knot patterns; BL 14 (Jueyinshu) the Back-Shu of the Pericardium. Foundational formulas include Wen Dan Tang (Phlegm-Heat harassing the Pericardium with anxiety and insomnia), Tian Wang Bu Xin Dan (Yin deficiency with restless Shen), An Gong Niu Huang Wan (high-fever delirium — classical Heat invading the Pericardium), and Su He Xiang Wan is the classical formula for Phlegm-Cold misting the mind (note: my clinic does not stock Su He Xiang Wan because of welfare concerns with its musk content; equivalent open-the-orifices effects can be achieved with plant-only formulas).

For the full clinical article with pattern differentiation, classical citations and herbal treatment strategies, see Disorders of the Pericardium and Triple Burner.

Return to Zang-Fu organ overview. Paired with the Triple Burner. Read about the related Zang organs: Heart, Lung, Spleen, Liver and Kidney; or the other Fu organs: Stomach, Large Intestine, Small Intestine, Bladder and Gallbladder.