Abstract
This chapter analyzes the ethical issues that arise in the context of the use of physical enhancement techniques, i.e.techniques that aim at enhancing one or more physical functions of human beings. First, it discusses the different types of physical enhancement and points doping in sports is only a minor part of the whole enhancement field. Considerable attention is devoted to enhancement in sports, primarily because of the extensive extant literature. Then, the chapter moves on to problematize the concept of enhancement. It shows that deciding whether something should count as an enhancement is not a matter for pure personal decision. The chapter engages with the ethical arguments put forward in the enhancement debate, showing that the validity of both the pro‐ and the anti‐enhancement arguments is context‐dependent and the growth hormone treatment can only be justifiably claimed if it aims at giving someone a height in the normal range.