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Symptoms

Almost all girls with Turner syndrome will grow up to be shorter than average, with underdeveloped ovaries.

Girls with Turner syndrome also have distinctive features and associated health conditions, some of which may be apparent from birth.

They may be born with swollen hands and feet, caused by a build-up of excess fluid (lymphoedema) in the surrounding tissues, but this usually clears soon after birth.

Other features that may have developed in the womb include:

  • thick neck tissue
  • swelling of the neck (cystic hygroma)
  • being a small baby
  • heart conditions
  • kidney abnormalities
Growth

Babies with Turner syndrome may grow at a normal rate until they're 3 years old. After this, their growth slows down.

At puberty, usually between 8 and 14 years, a girl with Turner syndrome will not have the normal growth spurt, even with female oestrogen hormone replacement therapy (HRT).

Girls with Turner syndrome are typically short in relation to the height of their parents. On average, adult women with untreated Turner syndrome are 20cm shorter than adult women without the syndrome. Treatment with additional high-dose growth hormone reduces this difference by about 5cm (about 2in) on average.

Read more about growth hormone treatment in Turner syndrome.

Ovaries

Ovaries are the pair of female reproductive organs that produce eggs and sex hormones. During puberty, a girl's ovaries usually begin to produce the sex hormones oestrogen and, once fully mature, progesterone. These trigger periods to begin.

Most girls with Turner syndrome do not produce enough of these sex hormones, which means:

Even though many women with Turner syndrome have undeveloped ovaries and are infertile, their vagina and womb develop normally. This means they're able to have a normal sex life following treatment with female hormones.

Most girls need hormone replacement therapy (HRT) with oestrogen from around 10 to 12 years of age to begin breast development, and about 3 years later with added progesterone to bring on monthly periods.

A minority of girls with Turner syndrome experience some physical changes naturally during puberty, but only a very small number become pregnant naturally.

Other symptoms

There are many other symptoms or characteristics that can affect girls and women with Turner syndrome.

General features

  • a particularly short, wide neck (webbed neck)
  • a broad chest and widely spaced nipples
  • arms that turn out slightly at the elbows
  • a low hairline
  • teeth problems
  • a large number of moles
  • small, spoon-shaped nails
  • a short 4th finger or toe

Eyes

Ears

Associated conditions

Turner syndrome is often associated with a number of other health conditions, including:

Learning difficulties

Most girls with Turner syndrome have good language and reading skills. However, some have behavioural, social and specific learning difficulties.

Social intelligence

Some girls with Turner syndrome may have problems understanding social relationships.

This can make it difficult to sustain friendships and leads to relationship problems in later life, both at home and at work.

Spatial awareness and numeracy

Spatial awareness is the ability to understand where you are in relation to objects or other people.

Most females with Turner syndrome have difficulty understanding spatial relationships. This may cause problems when learning to drive or following directions on a map.

A similar number have some degree of difficulty learning or understanding maths. This is known as dyscalculia.

Attention and hyperactivity problems

Typically, girls with Turner syndrome will go through a phase in childhood that involves: 

  • physical overactivity, such as constant fidgeting and restlessness
  • acting impulsively, such as breaking rules or having no sense of danger
  • having a short attention span and being easily distracted

Attention and hyperactivity problems usually begin when the girl is a toddler but may not be a serious problem until the girl starts school at 4 or 5. Girls with Turner syndrome may have difficulty settling in class.

Medicines used to treat attention deficit hyperactivity disorder (ADHD) may not be as effective in cases of Turner syndrome.

The physical hyperactivity usually reduces around the time the girl starts secondary school at 11 years of age, although problems with inattention can last longer, into the teens.

Last Reviewed
21 July 2023
NHS websiteNHS website
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Hedgegrail Pharmacy in Stoke Poges offers a wide range of prescription and over-the-counter medications, as well as health and beauty products
Company Registration: 2041755
Premises GPhC: 1099892
Superintendent: Baljit Singh Bahra
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