Thyroid dysgenesis thyroid gland may be located anywhere along the path of the descent of the thyroid during its embryological development, although it is most commonly located at the base of the tongue, just posterior to the foramen cecum of the tongue. In this location, an aberrant or ectopic thyroid gland is known as a "lingual thyroid". If the thyroid fails to descend to even higher degree, then the resulting final resting point of the thyroid gland may be high in the neck, such as just below the hyoid bone. Parts of ectopic thyroid tissue ("accessory thyroid tissue") can also occur, and
Thyroid disease in women baby. Symptoms of normal pregnancy, like fatigue, can make it easy to overlook thyroid problems in pregnancy. Thyroid hormone is vital during pregnancy. The unborn baby's brain and nervous system need thyroid hormone to develop. During the first trimester, the baby depends on the mother's supply of thyroid hormone. At 10 to 12 weeks of pregnancy, the baby's thyroid begins to work on its own. But the baby still depends on the mother for iodine, which the thyroid uses to make thyroid hormone. Pregnant women need about 250 micrograms (mcg) of iodine a day. Some women might not get all