Lung Yang Deficiency

At a glance

Key attributes

Chinese name: 肺阳虚      Pinyin name: Fèi Yáng Xū

Pattern nature: Empty

Pattern hierarchy: Specific pattern under Yang Deficiency

Causes

Precursor patterns: Kidney Yang Deficiency Lung Qi Deficiency

Common causes: 1. External Wind and Cold, 2. Aging

Diagnosis

Common symptoms: Fatigue Wheezing No thirst Cold limbs Weak voice and five other symptoms

Pulse type(s): Slow (Chi), Slowed-down (Huan), Wiry (Xian)

Tongue description: Swollen pale tongue with slippery white coating

Treatment

Treatment principle: Warm the Lungs, strengthen the Spleen, remove Phlegm, tonify Lung Qi and Yang

Common formulas: Gan Cao Gan Jiang Tang Si Jun Zi Tang Sheng Mai San

Pathology

The general symptom of Lung Yang Deficiency is coughing and wheezing with profuse sputum, but the sputum is thin and watery. There is also Cold characters such as cold limbs and back, feeling of cold and easy to get cold or flu. It is because the lacking of Yang fails to warm the body. 

If this pattern is seen in consumptive lung disease, there are additional manifestations such as short of breath, no thirst, frequent urination an etc. It is because the Deficient Qi and Yang fails to generate Body Fluids to moisten the Lungs. Use Gan Cao Gan Jiang Tang together with Si Jun Zi Tang

If this pattern is seem in asthma, There are additional symptoms like wheezing, short of breath, weak voice, spontaneous sweating. The Cold invade the Lungs and settles down there. Often there is also Phlegm accompanying. In this case, use Sheng Mai San together with Gan Cao Gan Jiang Tang and Milkvetch roots

Lung Yang Deficiency is more seen among the elderly or these with weak constitution. It gets worse during winter season or in cold environment.  

Causes

Precursor patterns: Lung Yang Deficiency can derive from Kidney Yang Deficiency Lung Qi Deficiency

External Wind and Cold : Prolonged exposure to cold and windy environment can consume body Qi and Yang.  The pattern get more obvious during winter season and in cold highland areas.

Aging : Lungs' function regresses when people gets old. This pattern is more seen among the elderly. 

Diagnosing Lung Yang Deficiency

Pulse type(s): Slow (Chi), slowed-down (Huan) or wiry (Xian)

Tongue description: Swollen pale tongue with slippery white coating

Main symptoms: Fatigue Wheezing No thirst Cold limbs Weak voice Pale complexion Shortness of breath Spontaneous sweating Frequent Colds or Flu Coughing with copious clear thin sputum

Diagnosis commentary: Key characteristic symptoms of this pattern are the coughing and wheezing with profuse clear thin sputum.

Treating Lung Yang Deficiency

Treatment principle

Warm the Lungs, strengthen the Spleen, remove Phlegm, tonify Lung Qi and Yang 

Herbal formulas used to treat Lung Yang Deficiency

Si Jun Zi Tang

Source date: 1107 AD

Number of ingredients: 4 herbs

Key actions: Tonifies Qi. Strengthens the Spleen and Stomach.

Formula summary

Si Jun Zi Tang is a 4-ingredient Chinese Medicine formula. Invented in 1107 AD, it belongs to the category of formulas that tonify Qi.

Besides Lung Yang Deficiency, Si Jun Zi Tang is also used to treat Qi Deficiency or Stomach Qi Deficiency.

Read more about Si Jun Zi Tang

Gan Cao Gan Jiang Tang

Source date: 220 AD

Number of ingredients: 2 herbs

Key actions: Warms the Lungs. Strengthens the Stomach.

Formula summary

Gan Cao Gan Jiang Tang is a 2-ingredient Chinese Medicine formula. Invented in 220 AD, it belongs to the category of formulas that warm Interior Cold.

Read more about Gan Cao Gan Jiang Tang

Sheng Mai San

Source date: Yuan Dynasty

Number of ingredients: 3 herbs

Key actions: Augments Qi. Supplies the Yin. Stops excessive sweating. Generates Body Fluids.

Formula summary

Sheng Mai San is a 3-ingredient Chinese Medicine formula. Invented in Yuan Dynasty, it belongs to the category of formulas that tonify Qi.

Read more about Sheng Mai San

Consequence patterns

Oedema

The Lungs control dispersing and descending Body Fluids throughout the body to the space between the skin and muscles. 

If this function is impaired, Body Fluids overflows out of their channels and settle under the skin, resulting in Oedema.