Classification

Definition

Normospermia

Normal ejaculate as defined in Table 2

Oligozoospermia

Sperm concentration <20 x 106/ml

Asthenozoospermia

Fewer than 50% spermatozoa with forward progression or fewer than 25% spermatozoa with rapid linear progression

Teratozoospermia

Fewer than 30% spermatozoa with normal morphology

Oligoasthenoteratozoospermia

Signifies disturbance of all three variables (combination of only two prefixes may also be used)

Azoospermia

No spermatozoa in the ejaculate

Aspermia

No ejaculate