With the rapid progress of science and technology,the society requires more painstaking specialization division of labor,and higher level of proficiercy in a paticular line and strongly seeks efficiency an educated man,or a worker should comply with the requirements of objective environment and seeks "having specialized knowledge of a subject" in order that heaven may grant his wish.

This paper sums up researches on epidemiology, pathological classification, pathogenic mechanism, TCM etiology and pathogenesis, differential treatment, and specific prescriptions and medications.