Girl, 5, faces years of injections for early puberty

A five-year-old London girl is receiving regular hormone-blocking injections to manage central precocious puberty (CPP), a condition that caused her to begin developing at just 10 months old. Sienna's mother, Sophie Dumas, is now considering future fertility options for her daughter, including egg freezing.

Ms Dumas first noticed that Sienna's breast tissue appeared enlarged. A health visitor confirmed her concerns, prompting a visit to the GP and a referral to paediatric endocrinologists. Following a series of tests, including Stim tests and X-rays to assess bone age and hormone levels, Sienna was diagnosed with CPP.

CPP is a condition where the brain triggers puberty prematurely. Without treatment, Sienna would have progressed through puberty years before her peers. Doctors explained that early puberty can affect final adult height due to accelerated growth plate maturation.

The treatment involves regular injections of a GnRH analogue hormone blocker to suppress the hormones responsible for puberty. Sienna receives these injections every four weeks. Ms Dumas described the process as heartbreaking at times, with Sienna sometimes crying and resisting the procedures.

The family was reassured when Sienna's MRI scan, conducted to check for underlying brain abnormalities, came back clear. Ms Dumas stated that the emotional impact of the condition and its treatment on Sienna is a significant concern. She worries about potential bullying and mental health issues arising from differences.

Sienna is also dealing with hormonal spots on her face, which have led to teasing from school friends who mistook them for chickenpox. Ms Dumas informed Sienna's teacher, who has spoken to the class to reassure Sienna and explain that it is not their place to diagnose her spots.

The family has been advised that Sienna will likely remain on hormone-blocking treatment until she is approximately 11 or 12 years old, depending on her development. Ms Dumas is exploring egg freezing as a potential option to preserve Sienna's fertility, concerned that her condition might affect her ability to start a family later in life.

Ms Dumas encourages other parents with concerns about their children's health to seek medical advice promptly. She noted that even initial concerns, which might seem minor, should be investigated, highlighting the importance of her daughter's health visitor's initial observation.