The thyroid is a gland in the lower neck. It makes hormones that regulate growth, brain development, and metabolism. Hypothyroidism is a low or absent production of these hormones. Congenital means the conditions is present since birth.
The Thyroid Gland
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If this condition is not treated it can cause damage to the brain. This can lead to intellectual disability and abnormal growth.
Last reviewedDecember 2014by Kim A. Carmichael, MD, FACP
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