A gestational carrier, also referred to as a gestational surrogate, is a woman who agrees to carry and give birth to a child for another woman or couple who may be infertile. Gestational carriers use a fertilized embryo created using in vitro fertilization that is then surgically placed into their uterus. In order to prepare the uterus for conception and to carry the fetus to term, gestational carriers will need to take hormones. They are expected to surrender the infant to the genetic parents upon birth. The gestational carrier has no biological relationship to the embryo she is carrying. Gestational carriers differ from a traditional surrogate, as a surrogate, along with giving birth, provides the egg for fertilization. Several legal issues are related to gestational surrogacy and are typically addressed in advance of an arrangement. These legal issues vary from state to state.