Male fertility

Male factor is solely responsible in around a fifth of couples and contributes in a further third. It is the most under-served area in fertility, and the most useful place to start testing early.

Example answer60.0 millionIn the 20+ rangeAre there enough moving sperm for IUI?You need: Semen volume, Concentration, Total motilityOpen calculator →
Example answer120.0 millionIn the 60+ rangeWhat is my total sperm count?You need: Semen volume, ConcentrationOpen calculator →
Example answer8.0 millionIn the 5–10 rangeIs my washed sample good enough for IUI?You need: Post-wash volume, Post-wash concentration, Post-wash motilityOpen calculator →
Example answer18.0 %In the 15–25% rangeWhat does my DFI result mean?You need: DNA fragmentation indexOpen calculator →
Example answerAll 5 within WHO limitsVolume, count, motility, formsIs my semen report normal?You need: Volume, Concentration, Total motility, Progressive motility, Normal formsOpen calculator →

The half of fertility that gets half the attention

Male factor is solely responsible in around 20% of couples and contributes in a further 30%. Despite that, assessment is often delayed until after the female partner has been through months of investigation. Both partners tested at the same time is standard practice, not an escalation.

The timing detail that changes what people do: sperm production runs about 74 days plus two weeks of transit. A sample reflects conditions from roughly three months ago — so a fever in February shows in a May test, and stopping smoking today will not move a result next week.