“Uncontained projective identifications can create endless problems in the therapeutic interaction. This article primarily looks at one aspect of this difficulty, namely, that of runaway positive feedback loops. A brief definition of projective identification is given. Containment is then discussed in a more general sense. The manner in which uncontained projective identifications can escalate into positive feedback loops is presented through a specific clinical example. Finally, the mechanism is distinguished from projection and simple behavioral induction.