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Turner Syndrome

Turner Syndrome - What it is


What is Turner syndrome?

Turner syndrome (TS) is a chromosomal condition that describes girls and women with common features, physical traits and medical conditions that are caused by the complete or partial absence of one X chromosome.

Typically, females have 46 chromosomes which include two X chromosomes, while males have one X and one Y chromosome.

Female and Male Chromosomes

How common is TS?

It is estimated that TS occurs in approximately one in 2,000 live female births.

Are there different types of TS?

Girls who are missing one complete X chromosome have what is called monosomy X, often referred to as 'classic TS'.

Others are missing only a part of the second X chromosome, or have some structural rearrangements of the chromosome.

Girls who have a missing or rearranged chromosome in some but not all cells of the body have a mosaic karyotype.


Karyotype showing classic TS

Karyotype showing classic Turner syndrome


Turner Syndrome - How to prevent?

Turner Syndrome - Preparing for surgery

Turner Syndrome - Post-surgery care

The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

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