75% or more of spermatozoa to be free of the following on a cumulative basis:—

Head defects

Teratoid sperm

Macro and micro cephalic heads

Double heads

Rolled, crested heads

Nuclear crater, diadem

Narrow or abnormal base

Pyriform, tapered head

Other abnormal shapes

Abnormal loose heads

Loose heads

Acrosome defects

Knobbed acrosome

Lipped acrosome

Tail defects

Double tail

Proximal cytoplasmic droplet

Distal cytoplasmic droplet

Pseudo droplet

Stump tail defect

Dag defects

Mid piece relexes

Corkscrew defect

Segmental aplasia of mitochondria

Bent of coiled principal piece