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What is congenital hypothyroidism

Beware of congenital hypothyroidism in infants

Congenital hypothyroidism is a condition that affects infants from birth ( congenital ) and results from the loss of part or all of the thyroid function ( hypothyroidism ) . The thyroid gland is a butterfly -shaped tissue in the lower neck . He makes iodine-containing hormones that play an important role in regulating growth , brain development , and the level of the chemical reactions in the body ( metabolism ) .

Congenital Hypothyroidism occurs when the thyroid gland fails to develop or function properly . In 80 to 85 percent of cases , no thyroid gland , located not normal , or reduced in size ( hypoplasia ) . In other cases , normal -sized thyroid gland or enlarged present , but thyroid hormone production is reduced or absent .

If untreated , congenital hypothyroidism can lead to intellectual disability and abnormal growth . In the United States and many other countries , all newborns are tested for congenital hypothyroidism . If treatment is started in the first month after birth , infants usually develop normally.

Hypothyroidism in newborns can be caused by :

- The thyroid gland is missing or poorly developed
- The pituitary gland that stimulates the thyroid gland does not
- Thyroid hormones are not formed or not working
- The thyroid gland is not fully developed is the most common defect . It occurs in about 1 of every 3,000 births . Girls exposed to two times more often than boys .

Most affected infants have few or no symptoms , because their thyroid hormone levels were only slightly lower . However , infants with severe hypothyroidism often have a unique appearance , including :

- Looks dull
- Face swelling
- Thick and protruding tongue
- This appearance usually develops as the disease gets worse .

Children may also have :

- Episode choking
- Constipation
- Dry hair , brittle
- Jaundice
- Lack of muscle
- Low hairline
- Eat a bit
- Short Stature
- Sleepiness
- Sluggish


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