The purpose of this work is to present data on the frequency of cribra orbitalia in the skulls of children from a Polish medieval population cemetery in Gruczno and to compare the results with the frequency of this phenomenon in adult populations. The frequency of cribra orbitalia was investigated in 92 skulls belonging to individuals who died between the ages of 0 to 15 years. The Hengen scale (1971) and the Nathan & Haas scale (1966) as modified by Robledo et al (1995) were used. The frequency of cribra orbitalia in children whose age at death was between 0 and 7 years was 47.1%, and in children who died between 7 to 15 years was 50.0%.
The results described allow us to conclude that the living conditions of the medieval population of Gruczno did not guarantee the good health of children and adolescents. They were exposed to a variety of factors, in particular to pathological factors, disturbing their growth and development. Copyright © 2002 John Wiley & Sons, Ltd.