
London mother considers egg freezing for daughter diagnosed with precocious puberty at 10 months
A five-year-old girl in London, Sienna, was diagnosed with central precocious puberty at 10 months old after a health visitor noticed enlarged breast tissue. Her mother, Sophie Dumas, is considering freezing Sienna’s eggs to preserve future fertility options. Sienna currently receives monthly hormone-blocking injections to suppress puberty, a treatment she may continue until age 11 or 12. The condition, which has no known cause in many cases, can affect adult height and has already led to bullying at school due to hormone-related skin changes. Dumas emphasizes the importance of early medical intervention, noting that without the health visitor’s observation, Sienna might not have received treatment so early.













