An interesting question, in both the moral and the legal context, is whether babies born of an infertility treatment-induced supernumerary pregnancy are properly considered to have been harmed. One might wonder how such a question could even arise in the face of data that clearly demonstrate that ITISP leaves an unduly large number of babies blind, deaf, and palsied, and facing lifelong disabilities. In fact, however, a number of arguments, based on the problem of collective form and two forms of (...) the so-called “nonidentity problem,” challenge the claim of harm in the ITISP context. The purpose of the present paper is to establish, as against these arguments, that harm has been imposed on the ITISP-damaged offspring. (shrink)