No sexual dimorphism in human prenatal metacarpal ratios

Abstract Background Ratios of digit lengths are studied intensively as markers of prenatal sex hormone levels. Aim Study sexual dimorphism in ratios of metacarpals, which received less attention. Methods We studied six metacarpal ratios in deceased human fetuses of ages 10 to 42 weeks. Results and conclusion We found no indication of a sexual dimorphism at this early stage of development.