It had been established that ABO blood group system associated with some diseases or disorders. The objective of this study was to determine the effect of ABO blood group on anthropometric indices in young adult population in Kurnool, AP.  Objectives To study relationship between ABO blood group and height, weight, BMI & BSA among young adult population in Kurnool, AP.  Material And Methods Two Hundred and fiftyapparently healthy young adults was randomly selected. The weight (kg) and height (cm) of the participants were measured following standard protocol. Body mass index (BMI) and body surface area (BSA) were estimated from weight and height using Quetelex and Mosteller formulae respectively. Chi square was used to compare grouped data while comparison of means of parameters among the four blood groups was done using Analysis of Variance (ANOVA). A p-value of < 0.05 was taken statistically significant.  Results Out of the total 250 participants, 52% were males& 48% were females. The mean ± SD of height (cm) of participants was 166.3 ± 9.42. The mean ± SD of weight (kg) of the participants was 60.28 ± 12.04. The mean ± SD of BMI in kg/m2 was 21.81 ± 4.14, while the mean ± SD of BSA (m2) was 1.66 ± 0.18.participants below 150 cms were of 3% B blood group & 1.5% O group respectively and participants above 181 cm were 12% A blood group 15% AB blood group (p value 0.002 and chi square 20.62).  Discussion In my study height was positively correlated with A & AB group & Negatively correlated with B & O group similar to study bySelçukNas et al & JD Kark et al.  Conclusions Several epidemiological studies have reported that the distribution of different ABO blood groups vary markedly among the populations of different geographical areas reflecting racial differences and results of this study blood group on anthropometric indices in young adult population in Kurnool, AP has come significant.

Keywords : ABO Blood Groups, Anthropometry, Young Adult.