Objective:Through the analysis of coagulation convention and blood routine parameters of sudden hearing loss(SHL)patients,further prove the correlation of sudden deafness and the the inner ear microcirculation,to guide clinical diagnosis and treatment.Method:Select 424patients(448ears)with sudden deafness in our department to SHL group.According to hearing curve is classified into low intermediate frequency descent group,high frequency drop and full frequency group,and drawing 244 cases in the same period o...