Objective To study the relationship among patient factors,coexisting diseases and VCs after PCI operation.Methods Groin areas of 918 patients were observed to find out whether VCs occurred before and after compression,12 and 24 hours after tube removing and the patients′ characteristics and coexisting diseases were recorded.Results The frequently occurring VCs included ecchymosis,hematoma and bleeding.Age was significantly associated with ecchymosis,whereas hypertension was associated with a decreased level...