Bone age test of hand and wrist
An X-ray of the left hand can help determine your child’s bone age. It is then compared to standard growth charts to establish whether the bones are growing too quickly.
This test measures the level of hormones in your child’s bloodstream.
GnRH stimulation test
This test helps distinguish central precocious puberty, or CPP, from other possible causes of early puberty.
Pelvic and adrenal ultrasound
This checks the development of your child’s ovaries or testicles, and adrenal glands.
MRI or CT scan
These tests show if any brain abnormalities are causing the early start of puberty.
*Based on an online survey of 141 US pediatric endocrinologists from June 6 to July 14, 2017.