Puberty begins when the pituitary gland gets a signal from the brain to release “puberty” hormones
Puberty is triggered when the hypothalamus in the brain releases gonadotropin-releasing hormone (GnRH)
GnRH tells the pituitary gland (a bean-shaped gland located at the bottom of the brain) to release hormones called luteinizing hormone (LH) and follicle-stimulating hormone (FSH)
The result is that sexual development begins because:
Girls start producing estrogen
Boys start producing testosterone
For most children diagnosed with CPP, no underlying medical problem caused CPP. When there is no known cause, it is called idiopathic CPP. If your child is diagnosed with CPP, it is not your fault. Nothing you or your child did caused CPP.
The answer is in the hormones
Watch Peter A. Lee, MD, pediatric endocrinologist, talk about the causes of early puberty.