Primary infertility is defined as the inability for a couple to achieve a pregnancy, either because the sperm is unable to hit the egg cell, or because the embryo cannot attach to the woman's endometrial lining and give rise to a new pregnancy after a successful fertilization.
What is primary sterility?
By Zaira Salvador (embryologist).
Last Update: 10/23/2018
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)