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Fertility Glossary

Karyotype

A blood test showing the number and structure of your chromosomes.

Genetics

A karyotype is a laboratory picture of a person's chromosomes, showing whether the usual 46 are present and correctly arranged. It is often requested after recurrent miscarriage, in severe male-factor infertility, or where a chromosome rearrangement is suspected. Finding a balanced rearrangement in a parent explains some losses and opens the discussion about PGT-SR.

Also known as: chromosome test, karyotyping

Sources

  • ESHRE guidelines and patient information

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only β€” always follow the advice of your own clinic, doctor or pharmacist.

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