Sperm morphological defects in the neck or midpiece can affect or prevent them from swimming properly. Sperm cells need to have their heads up and upright. Otherwise, they may have issues traveling to the egg cell, not to mention penetrating and finally fertilizing it.
Read the full article on: What Types of Sperm Morphological Defects Exist? ( 72).
By Zaira Salvador B.Sc., M.Sc. (embryologist) and Sandra Fernández B.A., M.A. (fertility counselor).
Last Update: 11/27/2018