Teratozoospermia or teratospermia is defined as having 97% or over sperm in the ejaculate with an altered morphology. For a man to have a normal sperm morphology, at least 4% of his sperm should have a normal morphology.
By Concha Leal Cariñena M.D. (gynecologist), Rebeca Reus BSc, MSc (embryologist) and Romina Packan (invitra staff).
Last Update: 06/28/2018