[Genetic counseling. Indications, problems and prospects].

From their personal experience, the authors demonstrate that, in spite of increased requests in general, couples in underprivileged socio-cultural classes are insufficiently concerned by genetic counselling; on the contrary it is too often requested by women who are already pregnant. They emphasize the necessity of providing information to all at risk couples and the essential part taken by family doctors. They discuss the difficulties of geneticists when consulters do not express a real question or wait to be given a rule of behaviour. Antenatal diagnosis (proposed to 2 of every 5 couples in 1983) changed the concept of genetic counselling by replacing a probability (the risk) by a certainty (the child presents with the disease or is normal). However, one should not look to either genetic counselling or antenatal diagnosis for a considerable decrease in the incidence of affected children.