 First, this entry focuses on the donation of human gametes for reproductive purposes, as opposed to for research. The rationale for this is that most of the interesting ethical and philosophical issues here concern, in one way or another, the moral and social relations between the donors, parents (recipients), and children created, and these do not generally arise in the research context. The main exception to this is  section 4 (Payment)  where similar questions of consent, exploitation, and harm have been raised in both research and treatment contexts (Baylis &amp; McLeod 2007).