The first stage of embryo implantation is hatching and precontact with the endometrium, which takes place on day 5-6 of embryonic development.
The embryo, in a blastocyst state, detaches from the zona pellucida that surrounds it and begins to look for the most suitable place to implant.
Read the full article on: What is embryo implantation and when does it occur? ( 44).
By Blanca Paraíso M.D., Ph.D., M.Sc. (gynecologist), Manuel Muñoz M.D., Ph.D. (gynecologist), Sara Salgado B.Sc., M.Sc. (embryologist), Silvia Jiménez Bravo B.Sc., Ph.D. (senior clinical embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Cristina Algarra Goosman B.Sc., M.Sc. (psychologist).
Last Update: 10/02/2019