The teratozoospermia index (TZI) refers to the total number of areas that affect each abnormal sperm, that is, the head, neck, and tail. Thus, is the TZI ranges between 1 and 2, if means that sperms can have either one or two parts affected. It can also indicate that they present abnormalities in 3 different parts, although this case is uncommon.
What does it mean if your teratozoospermia index is 1.6?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 11/26/2018
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)