Objective:To study constitution type of people in Jiangyin area and its correlation with the theoryyang excess and yin deficiency,to guide clinical treatment. Data sources:database;retrieval method(title or keyword was yang excess or yin deficiency;constitution questionnaire invented by WANG Qi was applied for the survery. Results:In Jiangyin area,normal,damp heat,yin deficiency,blood stasis,phlegm dampness were the predominant constitution types,in which damp heat and yin deficiency accounted for 18.38% an...