Precocious puberty


Specialty of Paediatrics

What is precocious puberty?

Precocious puberty when a child’s body begins changing into that of an adult before the age of eight, in the case of girls, or nine in the case of boys. It’s not always clear what causes precocious puberty, but sometimes diagnosis can reveal an underlying cause, such as a genetic disorder or tumour. Precocious puberty is a rare condition, but is more common in girls than boys.

How can precocious puberty affect my child?

Normally, a slight variation in when a child starts puberty is to be expected. However, precocious puberty is a serious condition, because it causes the child’s bones to stop growing at an earlier age. This can stop them from ever reaching their full adult height potential.

Going through puberty early on relative to other kids can also be a difficult experience for your child, making them feel self-conscious and socially isolated. It’s therefore important that precocious puberty is recognised and treated early on.

Symptoms of precocious puberty

Precocious puberty can be identified by the common signs of puberty:

  • in boys, this can include a lower voice, facial hear, or enlarged genitals
  • in girls, this can include breast growth or menstruation

In both boys and girls, symptoms can include pubic hair, acne, body odour or spurt in growth.

Medical tests to diagnose precocious puberty

It important to go to the doctor with full medical records and family history. Diagnosis can involve asking about the height of relatives.

The doctor will also run some blood tests to measure the hormone levels in your child.

Precocious puberty generally causes the bones to grow more quickly, so the dotor will take some X-rays of your child’s hand and wrist to determine their bone age and check if there is any abnormality.

Treatments for precocious puberty

Treatment will depend on the cause of precocious puberty. Treating an underlying condition, such as a tumour, may resolve the issue by itself. Sometimes, however, the doctor will recommend taking medication to pause puberty for a few years until the child is of the right age to begin puberty again.

Which type of specialist treats precocious puberty?

Unless it is suspected that there is an underlying cause that needs to be investigated, your child may only need to see a GP. However, they may need to see a radiologist for an X-ray or MRI scan, if a tumour is suspected.

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