?Objective To survey the hereditary tendency of the pattern of Heart blood stasis obstruction (HBSO)in the population with coronary heart disease,hypertensive cardiopathy and diabetic cardiopathy. Methods Hereditary analysis was carried out among 54 families with a proband of HBSO pattern and 54 families with one person selected at first as healthy people as control with family line investigation method.During this process,tested were the I degree relative morbidity,heritability and RRs and their 95% CI of offspring morbidity from 3 types of pa...