Minor fragmentation only (less than 15% of the embryo) and/or cells are mostly of equal size.
The arrows indicate the fragmentation of the zygote, obtained from cell fragments. These fragments appear out of focus.
By Edurne Martínez Sanz BSc, MSc (senior clinical embryologist), José Muñoz Ramírez BSc, MSc, PhD (senior clinical embryologist), Mark P. Trolice MD, FACOG, FACS, FACE (reproductive endocrinologist), Marta Barranquero Gómez (embryologist), Neus Ferrando Gilabert BSc, MSc (embryologist), Zaira Salvador BSc, MSc (embryologist) and Romina Packan (invitra staff).
Last Update: 04/01/2014