Abstract

Bleeding time and clotting time are expected to be prolonged in O blood group compared with non O blood group as the level of von willebrand factor is high in non O blood group. There is limited studies available comparing the bleeding and clotting time in different blood groups. Hence we planned to analyze the clotting time, bleeding time in healthy volunteers of O, A, B and AB blood groups. Approach: This cross sectional study was conducted in the department of Physiology in our institution. The available detail reports of 544 students passing through 1st year of MBBS over the years from 2012to2015 were analyzed with respect to age, sex, blood groups, bleeding time and clotting time. The blood grouping was done with the standard antiserum. Bleeding time and clotting time were estimated by Duke Method and capillary tube method respectively. Finally bleeding time and clotting time of different blood groups were compared and statistical analysis was done. Results: in this study clotting time was more in males compare to females. But there was no significant difference in bleeding time and clotting time among various blood groups.

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