What the WHO semen manual says
WHO laboratory manual for the examination and processing of human semen, 6th edition (2021)
A semen report alone can't predict fertility
“For an individual patient, a semen analysis is never prognostic of fertility…”
WHO manual, section 1.2
DNA testing adds what a semen report misses
“Since [sperm DNA fragmentation] is only partially related to semen quality, it could represent an important addition in the work-up of male infertility…”
WHO manual, section 3.2
DNA damage can affect the embryo and the pregnancy
“…multiple meta-analyses published in recent years indicate that [sperm DNA fragmentation] may affect embryo development, implantation, and pregnancies in both natural and assisted reproduction.”
WHO manual, section 3.2
Our DNA fragmentation test uses the sperm chromatin dispersion (SCD) method, one of the four methods the manual describes.








