Back to glossary

Fertility Glossary

Turner syndrome

A missing or altered X chromosome in females, usually causing ovarian insufficiency.

Genetics

Most people with Turner syndrome have very few eggs by early adulthood, so donor eggs are the usual route to pregnancy. Cardiac assessment before pregnancy is essential because of the risk of aortic complications, and care is shared with cardiology and maternal-fetal medicine.

Also known as: 45X, monosomy X

Related Canada guides

Sources

  • Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information

Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only โ€” always follow the advice of your own clinic, doctor or pharmacist.

Explore in-depth guides

Learn more with Antega's fertility guides and articles.