This article analyzes the syndrome differentiation focused on "constitution-disease-pattern differentiation"

and summarizes the regular application of "three-differentiation"model. The term means that

the physicians differentiate disease at first

figuring out the main pathogenesis and disease

and then establish a main formula coordinated with specific Chinese herbs; meanwhile

which should be modified based on the characteristics of patients’ constitutions and patterns. When the disease relieves

the physicians will gradually focus on constitution differentiation

combining with pattern and disease differentiation

to consolidate the effect.