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Guides to sperm DNA fragmentation, from the basics to your result.
Simple guides to what DNA fragmentation is, how the tests work and what your result means. Every guide is sourced and dated.
5 guides in 4 categories
2 GUIDES
Getting Started
What DNA fragmentation is, who tests for it and what testing costs.
GETTING STARTEDHow much does a sperm DNA fragmentation test cost?Current at-home prices, what each one includes and what drives the differences.4 min read · Updated Nov 14, 2026GETTING STARTEDSperm DNA fragmentation: what it is, why it matters and when to testWhat it is, what causes it, and why a normal semen analysis can miss it.5 min read · Updated Nov 14, 2026
1 GUIDE
Testing Methods
How the tests work, how home collection works and how methods differ.
1 GUIDE
Understanding Results
Reading a DFI report, what cutoffs mean and what to do next.
1 GUIDE
Fertility & Research
Causes, treatment options and what the evidence says.
ABOUT THESE GUIDES
Our editorial team writes every guide from published research and clinical guidelines. Each one lists its sources and shows when it was last updated.
When a qualified clinician reviews a guide, their name, credentials and review date appear on it. Some guides feature SwimScore, and those placements are always labeled.