What is teratozoospermia according to the Kruger criteria?

To diagnose teratozoospermia, the reference values ​​set by the WHO are normally used, which indicate that a man suffers from this pathology if he has more than 96% amorphous sperm.

However, some laboratories also use strict Kruger criteria to assess sperm morphology. The Kruger reference value is more stringent and indicates that the male has teratozoospermia if more than 85% of the sperm are abnormal.

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