Embryo implantation is the process by which a fertilized egg, already converted into an embryo, reaches the uterus and adheres to the endometrium to begin gestation. Normally, this occurs on day 5-6 of embryonic development, when the embryo has already acquired the stage of hatching blastocyst.
Read the full article on: What is embryo implantation and when does it occur? ( 44).
By Antonio Forgiarini M.D., M.Sc. (gynecologist), Blanca Paraíso M.D., Ph.D., M.Sc. (gynecologist), José Manuel Navarro Pando M.D. (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) and Cristina Algarra Goosman B.Sc., M.Sc. (psychologist).
Last Update: 10/06/2026
