Objective:To study the rule of drug use and the relationship between"Core Compatibility Action Target"of the formula for treating blood in stool.Methods:Prescriptions for the treatment of hematochezia were selected from the Dictionary of Traditional Chinese Medicine Prescriptions,and entered into the database for frequency,clustering and correlation analysis,so as to find the rule of compatibility.After the core compatibility combination is found,the bioin-formatics analysis tool of the molecular mechanism of traditional Chinese medicine is used to predict the active ingredi-ent target of the ...