YE Tianshi discussed the spleen and stomach diseases in detail in Guide to Clinical Practice with Medical Records（ 《临证指南医案》）

taking yin and yang as the principle

he established the "theory of stomach yin"

which was focused and studied by later physicians. Meanwhile

it is believed that YE Tianshi attaches importance to yang qi in the stomach fu organs

and has many medical cases for the diagnosis and treatment of stomach yang deficiency. The etiology and pathogenesis are mainly yangming’s failure to transport

loss control of middle jiao

malfunction of stomach earth

disharmony of zang organs and fu organs

loss defense of stomach collaterals

imbalance of qi and blood

etc. In the treatment of syndrome

he puts forward some important methods

such as dredging yangming

harmonizing zang organs and fu organs

tonifying deficiency and dredging collaterals. The drugs are good at combining hardness with softness

preferring to be combined with drugs of thin flavor

which has a certain guiding significance to the diagnosis and treatment of the spleen and stomach system diseases.