Precocious Puberty in Children: Causes, Signs, and Treatment Options

In short: Precocious puberty is the appearance of signs of puberty before the age of eight in girls and nine in boys. It may be central, due to early activation by the brain, or peripheral, due to hormones released from elsewhere. Signs are early breast growth, a growth spurt followed by short stature, and body hair. It is treated by suppressing the hormones, or by surgery if the cause is a tumour.

Precocious puberty means puberty starts earlier than expected — before age 8 in girls and before age 9 in boys. Recognizing it early can help protect your child’s health and emotional wellbeing.

During puberty, a series of natural hormonal and physical changes lead the body toward sexual maturity. When these changes begin too early, it is worth discussing with a specialist.

Why is precocious puberty worrisome?

Because it may lead to:

• Shorter adult height
• Psychological effects due to low self-esteem

There are two types of precocious puberty:

• Central precocious puberty
• Peripheral precocious puberty

Central precocious puberty:

• Early activation of the hypothalamic-pituitary-gonadal axis
• The brain sends signals leading to early stimulation of the ovaries
• Can be caused by:
• Brain injury
• Infection
• Tumors
• Genetic causes
• Head trauma
• Idiopathic (no identifiable cause)

Peripheral precocious puberty:

• Early production of sex hormones from sources outside the central nervous system
• Causes:
• Gonadal tumors or adrenal tumors
• Hormonal conditions such as ovarian cysts, congenital adrenal hyperplasia, severe underactive thyroid, or accidental exposure to hormone creams, gels or medicines used by adults
• Genetic disorders

Signs of precocious puberty:

• Early development of secondary sexual characteristics, like breast development
• Accelerated growth followed by early closure of the growth plates, which can lead to shorter adult height
• Armpit or pubic hair [* Menstruation before about 10 years of age in girls

Diagnosis:

• Physical exam revealing early sexual development
• Blood tests to measure pituitary and ovarian hormone levels
• MRI to check for structural abnormalities in the brain or organs
• X-rays of the wrist to assess bone maturity

Treatment:

• Central precocious puberty: medications to suppress the hormones released from the brain
• Peripheral precocious puberty: surgery for tumors, or medications to block excess hormone production
• In cases linked to genetic conditions, genetic counselling is recommended

It is important to address this condition as early as possible, as it can affect both the physical growth and the emotional wellbeing of children and their families.

If you notice early signs of puberty in your child, don’t hesitate to seek a professional evaluation — early diagnosis allows for timely, personalized care. Dr. Najeeb Layyous and his team are available to guide you through assessment and management options.

Dr Najeeb Layyous F.R.C.O.G

Consultant Obstetrician, Gynecologist and Infertility Specialist