Early puberty (precocious puberty)
Pubertas praecox · Předčasná puberta
What it is
Puberty starting before 8 in girls or 9 in boys — usually just early in girls, more often a cause to find in boys.
Symptoms & signs
- Breast development or a growth spurt before 8 (girls)
- enlarging testes before 9 (boys)
- pubic hair
- early periods
- adult body odour and acne
🚩 Get help if…
- call 112 / 911 now Headaches, vomiting or vision changes with early puberty
- see a doctor soon Breasts before 8 in a girl or testicle growth before 9 in a boy
- see a doctor soon Very fast growth in height
- see a doctor soon Periods starting before 10
Where it strikes
Medical treatment
- Bone-age X-ray and hormone tests
- MRI of the brain
- GnRH analogue injections to pause puberty
- treat the cause
Natural & lifestyle
- Healthy weight
- less exposure to hormone-disrupting chemicals
Emerging & experimental
- Kisspeptin research
- longer-acting implants
Alternative, off-label & anecdotal
Approaches used outside the guidelines, with what their supporters report and what testing has found so far.
- Avoiding plastics and soy — anecdotal; the evidence is weak anecdotal / traditional
- Weight loss in overweight girls — may slow early puberty early / small studies
- Herbal hormone balancers — untested anecdotal / traditional
ICD codes
- ICD-10 E30.1
- ICD-11 5A60.3 Central precocious puberty