What are the conditions required for implantation of the embryo in the uterus?
It is essential that the embryo be viable. Many embryos obtained naturally or artificially in the laboratory have genetic characteristics that prevent their development and implantation. It is also essential that the uterine mucosa be adequate (referred to as receptive) for implantation. Precise characteristics, in terms of hormonal environment and other physiological parameters, are also required to receive the embryo.
