Central Precocious Puberty (CPP): Causes, Treatment

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Getting a Diagnosis

Your child's doctor will likely ask you questions before doing an exam or tests.

  • What physical changes have you seen in your child?
  • Has their behavior changed recently?
  • When did you first notice this? How long has this change been there?
  • Is there history of early puberty in your family?

If the symptoms aren't severe, it can be hard to tell if it's CPP. Your doctor may want your child to see a doctor who focuses on children's hormones and growth, called a pediatric endocrinologist. He'll look for signs of puberty, but he may also check:

  • Hormone levels
  • Bone age

Blood tests check levels of hormones.

X-rays help find out if your child's bones are maturing too early.

MRI or CT scans can rule out a tumor. These tests scan and make pictures of the inside of the body and brain.

For an older child, early development might be normal.

Questions for Your Doctor

  • What caused my child's symptoms?
  • Is there a way to slow down their development?
  • Do we need to treat this?
  • Could treating it cause other problems?
  • What happens after treatment stops?
  • What happens if we don't do anything?
  • What's the best way to explain CPP to my child?
  • Will my child be OK?

Treatment

If your doctor can find a specific cause, he'll treat that.

In some cases, doctors can use a drug to block sex hormones and prevent further development. A man-made version of GnRH stops the pituitary gland from sending out gonadotropins.

The doctor can give your child a shot once a month or every 3 months, or he could put a small implant under the skin of your child's upper arm, which works for a year. Where they get the shot or implant may hurt a bit, or their skin might get irritated around that spot, but there don't seem to be any long-term side effects.

You'll probably want to keep up the treatment until your child gets old enough to let puberty continue -- around age 11 for girls and 12 for boys.

Most doctors treat a child younger than 7 years old. When you're thinking about whether to treat CPP in an older child, you'll want to think about:

  • Your child's age
  • How slow or fast they're developing
  • How your child has been reacting
  • The chance of early menstruation
  • Concerns about their height as an adult

Talk these things over with your child's doctor before you make any decisions.