SymptomsBy Mayo Clinic staff
Signs and symptoms of precocious puberty include development of the following before age 8 in girls and before age 9 in boys.
Precocious puberty symptoms in girls include:
- Breast growth
- First period (menstruation)
Precocious puberty symptoms in boys include:
- Enlarged testicles and penis
- Facial hair (usually grows first on the upper lip)
- Deepening voice
Precocious puberty symptoms that can occur in boys or girls include:
- Pubic or underarm hair
- Rapid growth
- Adult body odor
When to see a doctor
Make an appointment with your child's doctor for an evaluation if your child has any of the signs or symptoms of precocious puberty.
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