Cadmium (Cd) was determined by atomic absorption spectrophotometry in
small pieces (<1 g) of healthy human ovaries excised for histologic ex
amination. Cd levels in the ovary increased linearly between 30 and 65
years of age. Below 30 years, there was no age dependent increase and
over 65 a tendency was observed for ovarian Cd levels to decrease. Th
ere was no difference in the Cd content of fresh luteal and nonluteal
tissue taken from regularly cycling ovaries. In smokers, the amount of
Cd in the ovaries was elevated compared to nonsmokers. In multiparous
women (more than 3 children) a tendency to decreased Cd ovarian level
s was observed. There was no difference between ovarian Cd content of
physical and mental workers. It can be proposed that Cd may be a risk
factor for conception and pregnancy in women in their forties.