Why does Turner syndrome cause delayed puberty?

Delayed Puberty is a common presentation of Turner Syndrome. Turner syndrome is caused by a missing or altered X chromosome and can affect the ovaries before puberty begins. Instead of developing normally, the ovaries may contain fewer functioning follicles and make less oestrogen. Without enough oestrogen, breast development, growth of pubic hair and other expected changes may start late or progress slowly.

The condition can also affect growth and other body systems, so puberty timing is considered alongside height, general health, thyroid function and development. A delayed puberty pattern does not by itself confirm Turner syndrome; clinicians use the overall picture and appropriate testing.

Arrange an assessment with a paediatrician, adolescent-medicine clinician or endocrinologist if puberty is not progressing as expected. Evaluation may include growth measurements, hormone tests, chromosome testing and a review of family and medical history. If treatment is suitable, carefully timed oestrogen may help begin pubertal development, with other hormone support added later when needed. Emotional support and clear explanations can help a young person feel involved rather than singled out.

Seek a medical appointment when pubertal changes are absent or stop progressing, especially when growth is also below the expected pattern. Contact a clinician sooner if there are severe headaches, vision changes, marked thirst, fainting or significant fatigue, because these symptoms need their own assessment. Urgent care is appropriate for sudden severe symptoms or an acute illness.

Ask which tests will clarify ovarian function, whether hormone treatment is appropriate, how growth and bone health will be monitored, and whether heart, kidney or thyroid checks are needed.