Term | Definitions |
Normozoospermia | Normal ejaculate as defined by the reference values |
Oligozoospermia | Sperm concentration fewer than 20 × 106/mL |
Asthenozoospermia | Fewer than 50% spermatozoa with forward progression (categories “a” and “b”) or fewer than 25% spermatozoa with category “a” movement |
Teratozoospermia | Fewer than 30% spermatozoa with normal morphology Less than the reference value for morphology |
Oligoasthenoteratozoospermia | Signifies disturbance of all three variables (combinations of only two prefixes may also be used) |
Azoospermia | No spermatozoa in the ejaculate |
Aspermia | No ejaculate |