5-year-old girl who started going through puberty as a baby due to rare condition may freeze her eggs

Key Points:

• Sophie Dumas discovered her daughter Sienna had central precocious puberty (CPP) at just 10 months old after a health visitor noticed enlarged breast tissue, leading to a series of distressing tests and diagnosis by pediatric endocrinologists.
• CPP causes early onset puberty due to premature hormonal signals from the brain, and without treatment, Sienna could have developed physically years ahead of her peers, affecting her adult height and emotional well-being.
• Sienna undergoes monthly hormone-blocking injections to suppress puberty, a process that is emotionally difficult for both her and her family, and she is expected to continue treatment until around age 11 or 12.
• Sophie is exploring egg freezing for Sienna to preserve future fertility options, as early puberty and its treatment may impact reproductive health, and she is also managing the social challenges Sienna faces, such as teasing at school.
• Despite the challenges, Sophie is committed to protecting her daughter's childhood and advises other parents to seek medical advice promptly if they notice unusual signs in their children.