Recent medical-technological developments such as chorionic villi sampling and in vitro fertilization make sex selection in principle possible. The literature and our own experiences suggest an increasing demand for it. We interviewed a selected group of 180 women regarding sex selection, of whom 127 responded. More than 80% of these rejected a selection based on sex. The legitimacy of withholding information about the sex of the foetus is questionable. The existence of a demand, however small, should prompt professionals to take a stand about its acceptability.