“Finger print (dactylography / dermatoglyphic) is considered as the best tool of identification. This study was carried out in 2000-2001 on 300 students of different ABA blood groups of Medical College, Ajmer with two objectives, viz. (a) To study distribution of finger print pattern among the subjects having different ABO and Rh blood group and (b) Correlate any relation between their characters and blood groups. Male: female ratio was 2.4:1. Majority of the subjects (38.33%) in the study were of blood group A followed by blood group B, A and AB of whom 95.67% were Rh-positive. The general distribution of pattern of finger print showed high frequency (51.87%) of loops whereas whorls were moderate (35.83%) and arches were least (12.30%) in frequency.

Almost same order was noticed in both Rh-positive and Rh- negative individuals or A, B, AB and O blood groups. Blood group A showed more loops (Rh +ve 54.26%, Rh -ve 60%) while, blood group AB had more whorls (Rh +ve 43.34%, Rh -ve60%). The study suggests an association between finger print pattern and blood group. The distribution of different pattern of finger prints in individual fingers also showed some peculiarities in relation to blood group. The total finger ridge count (TFRC) was significantly greater in blood group B.The present study reveals that there is an association between distribution of finger print (dermatoglyphic) pattern and blood groups the general distribution pattern of the primary finger print was of the same order in individuals with A, B, AB and O blood group i.e. High frequency of loops, moderate of whorls and low of arches the same findings were seen in Rh-positive and Rh-negative individuals of ABO blood group.

The correlation is more consistent for blood group A and loops, arches were more in blood group AB in present study. Tile distribution pattern in individual fingers had high frequency of loops in thumb and little finger whereas ring fingers had more whorls and index and middle fingers presented higher incidences of arches in subjects of A, B and O blood groups. Individuals of blood group AB had high frequency of whorl in thumb, index and ring fingers while middle and little fingers showed more number of loops. None of the previous studies had emphasized on the distribution of different finger prints in different fingers of both the hands. Our study revealed high total finger ridge count in blood group B which is contrary to other studies where, blood group A had a significantly greater number of TFRC.”