When should sperm DNA fragmentation testing influence IVF or ICSI treatment decisions?

[Verified against AUA/ASRM Male Infertility Guideline 2021] The guideline draws a clear line between initial evaluation and specific indications. Sperm DNA fragmentation analysis is NOT recommended in the initial evaluation of the infertile couple (Moderate Recommendation, Evidence Grade C). Where it IS indicated: for couples with recurrent pregnancy loss, men should be evaluated with karyotype (Expert Opinion) and sperm DNA fragmentation (Moderate Recommendation, Evidence Grade C). The rationale given is the increased risk of miscarriage associated with abnormal sperm DNA fragmentation. That is a narrower indication than the test is commonly used for. It is frequently added to first-line panels, where the guideline explicitly does not support it. The ASRM RPL committee opinion (2026) is consistent, listing sperm DNA fragmentation testing as recommended in certain circumstances — recurrent unexplained miscarriage or concurrent infertility — alongside reproductive urology evaluation. An important limitation both documents share: no well-controlled published studies demonstrate that treating elevated DNA fragmentation reduces the risk of recurrent loss. Interventions such as varicocele repair, testicular sperm extraction, sperm selection, smoking cessation and lifestyle optimisation have been shown to decrease fragmentation, but whether that translates into better outcomes is unestablished. So the honest counselling position is that an abnormal result may prompt urological consultation to identify modifiable factors, rather than that treating the number improves live birth.