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    Early Puberty: Speak to Your Doctor If You Spot These Signs

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    Bangkok Hospital Headquarter
    Updated on: 10 Dec 2025
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    Early Puberty: Speak to Your Doctor If You Spot These Signs
    Bangkok Hospital Headquarter
    Updated on: 10 Dec 2025

    Puberty is a natural process and occurs when a child’s body begins to develop and change as they become adults. However, it may not be a good sign if your child starts puberty too early. Parents need to be educated about the signs of early puberty, also called precocious puberty, as these physical changes could psychologically affect your child more than you think.



    It is important for parents to pay attention to these signs of early puberty.

     img​

    Signs and symptoms in boys

    Before age 9

    • Enlarged testicles and penis
    • Pubic or underarm hair
    • Facial hair on the upper lips
    • Deepening voice
    • Chest development
    • Muscle development
    • Acne and adult body odor
    • Rapid height growth or a growth spurt


    img​

    Signs and symptoms in girls

    Before age 8

    • Breast development
    • Pubic and underarm hair
    • Changes in body shape e.g. waistline and hips become more evident
    • Start of menstruation
    • Acne and adult body odor
    • Rapid height growth or a growth spurt

     

    img​

    Diagnosing Early Puberty or Precocious Puberty

    • Consult with your doctor to develop a profile
    • X-ray imaging to assess the bone maturity
    • Hormonal blood testing
    • MRI scan to investigate any possible causes
    • Ultrasound scan to assess the ovaries

     

    img​

    Treatment for Precocious Puberty

    • Treating any underlying cause
    • Using medication to reduce hormone levels and pause sexual development
    • Evaluating the symptoms regularly

     

    If parents are concerned that their child may have developed precocious puberty, it is recommended that you bring your child to consult with the doctor and have proper diagnosis and treatments. Children with untreated precocious puberty sometimes do not reach their full adult height and stop growing too soon.

     

     

     

    For more information, please contact

    Child's Health Center

    4th Floor, Bangkok Hospital Building

    Daily 08.00 am. – 08.00 pm.

    (+66) 2310 3006

    (+66) 2755 1006

    (+66) 2310 3000

    1719 (local mobile calls only)

    0 2755 1098

    [email protected]

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