What is the Kruger criteria?

The Kruger criteria are stricter criteria than those of the World Health Organization (WHO) used to evaluate sperm morphology.

A seminal sample is considered normal when it presents 14-15% of spermatozoa with normal shapes. Instead, the WHO establishes a lower limit of normality, since only 4% is needed.

Therefore, a semen sample with more than 85% amorphous sperm would be diagnosed with teratozoospermia taking into account the Kruger criteria.

Community and Support

At inviTRA we work to make monthly and rigorous information accessible to everyone. If this article has helped you, consider supporting us so we can continue accompanying more people on their journey to parenthood.

Author

Cristina Algarra Goosman

B.Sc., M.Sc.

Psychologist

Graduated in Psychology by the University of Valencia (UV) and specialized in Clinical Psychology by the European University Center and specific training in Infertility: Legal, Medical and Psychosocial Aspects by University of Valencia (UV) and ADEIT.
More information about Cristina Algarra Goosman

Member number: CV16874