Table 1.

The most important WHO reference ranges for semen analysis

Semen parameter	Reference range
Semen volume	≥1.5 ml
pH	≥7.2
Sperm concentration	≥15 million sperm/ml
Total sperm count	≥39 million sperm/ejaculate
Total sperm motility	≥40% motile sperm
Progressive sperm motility	≥32% progressively motile sperm (former categories a + b)
Sperm morphology	≥4% morphologically normal sperm