[When health care professionals become unwillingly involved in child abuse: the Munchhausen-by-proxy syndrome].

Reports on seemingly caring mothers, who at the same time fabricate or provoke clinical symptoms in their children and subsequently expose them to potentially harmful medical procedures, are hardly believable at first sight. Nevertheless the steadily growing number of reports on this kind of child abuse, known as Munchausen-by-proxy syndrome, points to a significant number of undetected cases. The interactional involvement of health care professionals in the abuse tends to impede diagnosis, and, as a consequence of the syndrome, usually leads to violent emotional reactions, which require careful analysis and professional handling.