Ingredient Animal — part (动物部分 dòng wù bù fèn)

Que Nao

Sparrow brain · 雀脑

Passer montanus (Linnaeus) · Cerebrum Passeris

Also known as: Kun Shan Xue (昆山雪)

Sparrow brain is a rare animal-derived substance used in traditional Chinese medicine, first recorded in the classical text Ming Yi Bie Lu. It is primarily used externally for ear conditions such as deafness and chronic ear discharge, as well as for healing frostbite and chilblains. Its Kidney-tonifying properties also made it a component of the famous imperial longevity formula Gui Ling Ji.

Category Yang-tonifying herbs
Therapeutic focus Kidney health Ear health Skin healing

TCM Properties

Temperature

Neutral

Taste

Sweet (甘 gān)

Channels entered

Kidneys

Parts used

Animal — part (动物部分 dòng wù bù fèn)

Educational content • Consult qualified TCM practitioners for diagnosis and treatment

What This Ingredient Does

Every ingredient has a specific set of actions — here's what Que Nao does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Que Nao is primarily used to support these areas of health:

Kidney health Ear health Skin healing

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Que Nao performs to restore balance in the body:

Tonifies the Kidneys and invigorates Yang Moistens the skin and promotes tissue regeneration Benefits the ears and improves hearing

How these actions work

Tonifies the Kidneys and invigorates Yang: This means Què Nǎo can warm and strengthen the Kidney system, which in TCM governs reproductive function, bone health, and hearing. The Dian Nan Ben Cao describes it as able to 'invigorate Yang and promote seminal discharge,' pointing to its use for male reproductive weakness rooted in insufficient Kidney warmth.

Moistens the skin and promotes tissue regeneration: When applied externally, Què Nǎo was traditionally used to nourish damaged skin and encourage healing. This action was most commonly applied to frostbite and chilblains, where the rich, oily nature of brain tissue was believed to restore moisture and promote recovery in cold-damaged skin.

Benefits the ears and improves hearing: Because the Kidneys 'open to the ears' in TCM theory, Què Nǎo's Kidney-tonifying action extends to treating hearing problems. The Ming Yi Bie Lu records its primary indication as treating deafness, and the Sheng Ji Zong Lu describes wrapping a small amount in cotton and placing it in the ear canal for chronic ear discharge.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony. Que Nao is used to help correct these specific patterns.

Why Que Nao addresses this pattern

Què Nǎo enters the Kidney channel and has a sweet, neutral nature. Classical sources such as the Dian Nan Ben Cao (滇南本草) describe it as able to 'invigorate Yang and promote seminal discharge' (兴阳泄精), directly addressing the Kidney Yang weakness that underlies this pattern. As an animal-derived brain substance, it is traditionally considered to carry rich Essence (Jing) that can supplement the Kidney's reproductive and warming functions.

A practitioner would look for one or more of these signs

Impotence

Due to Kidney Yang failing to warm and activate the reproductive function

Hearing Loss

The Kidney opens to the ears; Kidney deficiency can lead to deafness

Commonly Used For

These are conditions where Que Nao is frequently used — but only when they arise from the specific patterns it addresses, not in all cases

Arises from: Kidney Yang Deficiency

TCM Interpretation

In TCM, frostbite and chilblains result from exposure to extreme Cold that damages the skin and underlying tissues, often compounded by an underlying weakness in the body's warming capacity (Yang). When Kidney Yang is deficient, the extremities receive insufficient warmth and circulation, making them more vulnerable to cold injury. The resulting tissue damage involves local Blood stasis and impaired tissue nourishment.

Why Que Nao Helps

Què Nǎo's action of 'moistening the skin and promoting tissue regeneration' (润肤生肌) directly addresses the damaged tissue in frostbite. Applied externally, the rich fatty and proteinaceous content of sparrow brain was traditionally believed to nourish local tissue and promote healing. Classical recipes from texts like the Ru Men Shi Qin (儒门事亲) describe burning it to ash, grinding it fine, and mixing with oil for topical application to frostbite wounds.

Also commonly used for

Impotence

Related to Kidney Yang deficiency, as described in the Dian Nan Ben Cao

Hearing Loss

Classical indication from the Ming Yi Bie Lu; applied by stuffing wrapped material in the ear

Ear Infections

Chronic ear discharge (聤耳); used topically by placing in the ear canal

Ingredient Properties

Every ingredient has an inherent temperature, taste, and affinity for specific channels — these properties determine how it interacts with the body

Temperature

Neutral

Taste

Sweet (甘 gān)

Channels Entered

Kidneys

Parts Used

Animal — part (动物部分 dòng wù bù fèn)

Dosage & Preparation

These are general dosage guidelines for Que Nao — always follow your practitioner's recommendation, as dosages vary based on the formula and your individual condition

Standard dosage

External use only: appropriate amount (适量)

Maximum dosage

No internal dosage established. Used externally only in appropriate amounts.

Dosage notes

Que Nao was used exclusively as an external medicine in classical practice. For ear conditions (suppurative ear discharge, deafness): a small amount was wrapped in cotton and placed in the ear canal. For frostbite: applied directly as a fresh paste, or burned to ash, ground finely, mixed with sesame oil, and applied topically to the lesion. The Dian Nan Ben Cao mentions yang-invigorating properties, but no specific internal dosage protocol is documented in classical sources.

Preparation

Used fresh (鲜用) immediately after extraction. For ear conditions, a small amount is wrapped in cotton before insertion. For frostbite, the brain may be burned to ash, ground into fine powder, and mixed with sesame oil before topical application.

Processing Methods

In TCM, the same ingredient can be prepared in different ways to change its effects — here's how processing alters what Que Nao does

Processing method

The sparrow brain is burned to ash and ground into a fine powder, then mixed with sesame oil for external application.

How it changes properties

Burning to ash transforms the raw brain tissue into a stable, dry powder suitable for wound application. The carbonized form is believed to enhance its tissue-regenerating and wound-healing properties while making it easier to apply as a topical preparation.

When to use this form

Used specifically for frostbite and chilblain wounds, as described in the Ru Men Shi Qin (儒门事亲). The ash-and-oil preparation is applied directly to broken frostbite skin to promote healing.

Key Formulas

These well-known formulas feature Que Nao in a prominent role

Gui Ling Ji 龟龄集 Assistant

Gui Ling Ji (龟龄集) is the most famous formula containing Què Nǎo. This imperial longevity formula from the Ming Dynasty combines over 20 Kidney-tonifying and Yang-strengthening ingredients. Què Nǎo serves as an Assistant, contributing its Kidney Yang-invigorating action alongside major ingredients like deer antler, sea horse, and Cistanche. In the formula's unique processing, sparrow brain is cooked with sulfur inside pig intestine before being combined with the other ingredients.

Comparable Ingredients

These ingredients have overlapping uses — here's how to tell them apart

Ha
Que Nao vs Hai Ma

Both Hai Ma (sea horse) and Que Nao are animal-derived substances that tonify Kidney Yang. However, Hai Ma is far more widely used in clinical practice, is warm in nature (versus Que Nao's neutral temperature), and has stronger Yang-tonifying and Blood-activating effects. Hai Ma is taken internally in formulas and powders, while Que Nao is predominantly used externally for ear conditions and frostbite, with internal use limited to specific compound formulas like Gui Ling Ji.

Identity & Adulterants

Related species and common adulterations to be aware of when sourcing Que Nao

Sparrow brain was a very specific animal-derived substance with no commonly documented adulterants or substitutes. The key identification concern was ensuring the brain came from the Eurasian Tree Sparrow (Passer montanus, 麻雀) specifically, and not from other small birds. In modern China, sparrows are protected wildlife and this substance is no longer legally available. There are no modern substitutes used in its place.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any ingredient.

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Que Nao

Non-toxic

Classical sources classify sparrow brain as non-toxic. The Ming Yi Bie Lu records its nature as 'ping' (平, neutral), and the Zhong Hua Ben Cao describes its taste as sweet (甘) and nature as neutral (平). No toxic reactions or adverse effects are documented in classical literature. As an animal brain tissue, standard food safety and hygiene concerns would apply, including the risk of pathogen transmission from wild birds (such as avian influenza). This substance was traditionally used fresh and externally, reducing systemic toxicity risks.

Contraindications

Situations where Que Nao should not be used or requires extra caution

Avoid

Sparrows (Passer montanus) are now classified as protected wildlife in China under the 'Three-Haves' (三有) list since 2000. Capturing, killing, or trading sparrows is illegal and can result in criminal prosecution. This herb is no longer obtainable through legal means in China.

Caution

Yin deficiency with vigorous Fire (阴虚火旺). The parent entry on sparrow meat in classical texts notes this contraindication. Since sparrow brain enters the Kidney channel and has yang-boosting properties, it should be avoided in people with excess Heat from Yin deficiency.

Caution

Not for internal use without practitioner guidance. Classical sources describe this substance primarily for external application (ear conditions, frostbite). Internal use references are very limited.

Caution

Avoid in people with Damp-Heat conditions or active infections in the ears. Using sparrow brain in the ear canal for suppurative ear conditions could worsen infection if not properly indicated.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

No specific classical or modern data on pregnancy safety exists for sparrow brain. However, given that the Dian Nan Ben Cao attributes yang-invigorating and seminal-discharge-promoting properties to this substance, caution would be warranted during pregnancy due to its activating nature. This substance is no longer in clinical use due to wildlife protection laws.

Breastfeeding

No classical or modern data exists specifically addressing the safety of sparrow brain during breastfeeding. Given its historical use was primarily external (applied to the ear or to frostbite lesions), systemic absorption and transfer through breast milk would be minimal for topical applications. This substance is no longer in clinical use.

Children

One classical formula from the Zi Mu Mi Lu (《子母秘录》) specifically describes applying sparrow brain topically to treat frostbite in children. No internal pediatric dosages are documented. As with all animal-derived substances applied to children's skin, care should be taken regarding allergic reactions. This substance is no longer in clinical use.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Que Nao

No drug interactions are documented for sparrow brain. This is an animal-derived substance that was used exclusively for external application in classical practice. Given its topical route of administration, systemic drug interactions would be extremely unlikely. This substance is no longer in clinical use due to wildlife protection laws in China.

Dietary Advice

Foods and dietary considerations when taking Que Nao

No specific dietary advice is documented for this externally-applied substance.

Botanical Description

Physical characteristics and morphology of the Que Nao source animal

Que Nao (雀脑) is not a plant-derived herb but rather the brain tissue (cerebral matter) of the Eurasian Tree Sparrow, Passer montanus (Linnaeus, 1758), a small passerine bird in the family Passeridae. The tree sparrow is approximately 12.5–14 cm in length, with a rich chestnut crown and nape, a distinctive black patch on each white cheek, a black chin and throat, light brown upperparts streaked with black, and two narrow white wing bars. Males and females look nearly identical, which is unusual among sparrows.

This species is widespread across temperate Eurasia and Southeast Asia. In East Asia, particularly in China, it is an urban and rural commensal bird, commonly found around human habitations, farmland, parks, hedgerows, and village eaves. It nests in tree cavities, building crevices, or under roof tiles. It feeds primarily on seeds and grain, supplemented by insects during the breeding season. In China, the tree sparrow is the most commonly encountered bird species nationwide.

Important note: The Eurasian Tree Sparrow is now a legally protected species in China, listed under the national 'Three-Haves' (三有) protected wildlife list since 2000. Capturing, killing, or trading sparrows is illegal. This entry is maintained for historical and scholarly reference only.

Sourcing & Harvesting

Where Que Nao is sourced, when it's harvested or collected, and how to assess quality

Harvesting season

Can be obtained in any season. Classical texts note that sparrows were traditionally caught year-round, killed, and the brain extracted for immediate fresh use. However, some formulas specifically call for sparrow brain obtained during the twelfth lunar month (腊月, the coldest winter month).

Primary growing regions

Que Nao is derived from the Eurasian Tree Sparrow (Passer montanus), which is distributed throughout all of China, from lowland plains to montane regions up to 4,500m in Tibet. It is the most common bird species in China. There is no specific 'terroir' (道地药材) concept for this animal-derived substance, as sparrows are ubiquitous across the country. Historically, sparrows could be obtained anywhere in China where humans lived, from villages to cities across all provinces.

Quality indicators

Classical sources specify that sparrow brain should be used fresh (鲜用) immediately after extraction. Good quality brain tissue would be intact, pale pinkish-grey, soft, and without signs of decomposition or discoloration. Some classical formulas call for brain collected specifically during the twelfth lunar month (腊月), when the cold weather was believed to enhance its therapeutic properties for treating frostbite. This substance is no longer legally obtainable.

Classical Texts

Key passages from the classical Chinese medical texts that describe Que Nao and its therapeutic uses

《名医别录》(Ming Yi Bie Lu, Supplementary Records of Famous Physicians)

Original Chinese: 主耳聋。

Translation: "Primarily treats deafness."

This is the earliest recorded source for Que Nao, indicating its use for hearing impairment.

孟诜 (Meng Shen, Tang Dynasty physician)

Original Chinese: 涂冻疮。

Translation: "Apply to frostbite sores."

Meng Shen documented the external application of sparrow brain for treating frostbite, a use later repeated across many classical texts.

《滇南本草》(Dian Nan Ben Cao, Materia Medica of Southern Yunnan)

Original Chinese: 兴阳泄精。

Translation: "Invigorates yang and promotes seminal discharge."

This text added the Kidney-yang-boosting indication and confirmed sparrow brain's channel entry as the Kidney channel.

《圣济总录》(Sheng Ji Zong Lu, Comprehensive Recording of Sacred Benevolence, Song Dynasty)

Original Chinese: 治聤耳：雀脑以棉裹少许，塞耳中。

Translation: "For suppurative ear discharge: wrap a small amount of sparrow brain in cotton and insert into the ear canal."

《儒门事亲》(Ru Men Shi Qin, Confucians' Duties to Their Parents, by Zhang Congzheng)

Original Chinese: 治冻疮：腊月雀脑子，烧灰研细，小油调，涂冻疮口上。

Translation: "For frostbite: take sparrow brain obtained during the twelfth lunar month, burn to ash and grind finely, mix with sesame oil, and apply to frostbite lesions."

Historical Context

The history and evolution of Que Nao's use in Chinese medicine over the centuries

Que Nao (雀脑, literally "sparrow brain") was first documented in the Ming Yi Bie Lu (《名医别录》), a text compiled around the late Han to Six Dynasties period (roughly 2nd–5th century CE), attributed to the tradition of Tao Hongjing. This places it among the earliest animal-derived substances in the Chinese materia medica.

The sparrow as a whole (雀, que) has deep cultural significance in China. Classical physicians considered sparrow-derived products to be warming and yang-tonifying, with sparrow meat (雀肉), eggs (雀卵), blood (雀头血), and brain each assigned distinct therapeutic roles. The brain was specifically valued for ear disorders and frostbite. The Ben Cao Gang Mu (《本草纲目》, 1578) by Li Shizhen catalogued sparrow brain alongside other sparrow-derived medicines in the Birds section.

In one notable historical application, sparrow brain was included as an ingredient in Gui Ling Ji (龟龄集), a famous longevity formula originally prepared for the imperial court, which combined over twenty precious animal and plant substances. Today, sparrows are protected wildlife in China under the 'Three-Haves' (三有) list established in 2000, making it illegal to capture, kill, or trade them. This substance is therefore of purely historical and academic interest and is no longer used in modern clinical practice.