Hypothyroidism poses a special danger to newborns and infants..
Hypothyroidism is the underproduction of thyroid hormones. Since our body's energy production requires certain amounts of thyroid hormones, a drop in hormone production leads to lower energy levels.
A lack of thyroid hormones in the system at an early age can lead to the development of cretinism (mental retardation) and dwarfism (stunted growth). Most infants now have their thyroid levels checked routinely soon after birth. If they are hypothyroid, treatment should begin immediately. In infants, as in adults, hypothyroidism can be due to these causes:
• A pituitary disorder
• A defective thyroid
• Lack of the gland entirely
A hypothyroid infant is unusually inactive and quiet, has a poor appetite, and sleeps for excessively long periods of time.
