Background. Since 1977 a literature has grown describing examples of f
actitious illness by proxy (FIP). Method. The literature in English wa
s searched using MEDLINE and supplemented by a manual search. Extracte
d data focused on terminology of a spectrum of behaviours, clinical fe
atures and psychopathology of perpetrators. Results. There has been di
fficulty with the use of terminology and classification of psychiatric
disorders. Conclusions. The spectrum of FIP is wide. Suggestions are
made for the use of terminology and classification when FIP is identif
ied.