they may begin sexual development but not complete it.they may not begin sexual development or fully develop breasts without female hormone replacement therapy (HRT).

Most girls with Turner syndrome do not produce enough of these sex hormones, which means: During puberty, a girl's ovaries usually begin to produce the sex hormones oestrogen and, once fully mature, progesterone. Ovaries are the pair of female reproductive organs that produce eggs and sex hormones. Read more about growth hormone treatment in Turner syndrome. Treatment with additional high-dose growth hormone reduces this difference by about 5cm (about 2in) on average. On average, adult women with untreated Turner syndrome are 20cm shorter than adult women without the syndrome. Girls with Turner syndrome are typically short in relation to the height of their parents. After this, their growth slows down.Īt 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). Other features that may have developed in the womb include:īabies with Turner syndrome may grow at a normal rate until they're 3 years old. 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.

Girls with Turner syndrome also have distinctive features and associated health conditions, some of which may be apparent from birth. Almost all girls with Turner syndrome will grow up to be shorter than average, with underdeveloped ovaries.

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