At present

main effect evaluation indexes for irritable bowel syndrome（ IBS） with constipation type and mixed type are divided into symptom indexes

indexes physical and chemical indexes

quality of life（ QOL）indexes

psychological indexes

and Chinese medicine treatment characteristics indexes. There are several problems in effect evaluation

such as different evaluation index systems were applied in studies

the procedures to develop the evaluation indexes were unclearly

etc. Thus the evaluation indexes are with less reliability and validity

and low level evidences. The development trend and urgent concerns include application of single index and comprehensive indexes

combination of evaluation indexes of long-term effect and short-term effect

as well as the evaluation system transformation from combination of disease and symptom to combination of disease

symptom and syndrome. Combined with clinical manifestations and pathophysiological basis of IBS

the strategy for effect evaluation is to establish a trinity effect evaluation system of disease

syndrome and symptom

by combining Chinese medicine characteristics with current scales. Meanwhile

it should be promoted and extended the application of the objective evaluation indexes.