“…The 2D:4D has been used for the correlation of IQ, gender determination and detection of different types of cancer in literature, as the digit ratios could be influenced by the action of HOX gene and 2D:4D was used as a putative marker for susceptibility to diseases influenced by such genes. [ 20 21 ] Sexual dimorphism in the extent and length of the fingers has been documented from interdigital ratios by Lippa,[ 22 ] i.e., the various possible ratios for different finger lengths. The sex difference obtained from the finger ratios was independent of the body size, as the ratios were not significantly related to the height and age in either sex.…”