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Congenital Hypothyroidism in Children What is congenital hypothyroidism? When the thyroid gland doesn't make enough thyroid hormone, it's called hypothyroidism. Congenital hypothyroidism is when the disorder is present in a baby at birth. If not treated, it can lead to serious

Newborn Screening Tests What are newborn screening tests? The United States has a national program of newborn screening tests. These check for health disorders that can be treated if they're found very early in life. If the screening test results are abnormal, it means more tests

Precocious Puberty What is precocious puberty? Puberty that happens early is called precocious puberty. This means a child's physical signs of sexual maturity develop too soon. This includes breast growth, pubic hair, and voice changes. These are known as secondary sexual