Sex Determination from Fingerprint Ridge Density

Abstract

This study was conducted with an aim to establish a relationship between sex and fingerprint ridge density. The fingerprints were taken from 500 subjects (250 males and 250 females) in the age group of 18-60 years. After taking fingerprints, the ridges were counted in the upper portion of the radial border of each print for all ten fingers
and mean value was calculated. The results have shown that a finger print ridge of < 13 ridges/25 mm² is more likely of male origin and finger print ridge of > 14 ridges/25 mm² is more likely of female origin. It has been successful to support the hypothesis that women tend to have a statistically significant greater ridge density than men.

Keywords: Fingerprint, Ridge density, Sex, Personal
identification

Internet Journal of Medical Update Vol. 2 (2) 2007: pp. 1-4