Hypothyroidism is an underactive thyroid. The thyroid is a
butterfly-shaped gland located just under the Adam's apple. The
thyroid regulates hormones that control metabolism. In
hypothyroidism, the thyroid doesn't produce enough hormones.
Hypothyroidism can be life-threatening, so it's important to
seek treatment. What causes hypothyroidism? Hypothyroidism can
be caused by an auto-immune disease called Hashimoto
thyroiditis, treatment for hyperthyroidism (overactive thyroid),
radiation therapy, certain medications, thyroid surgery, iodine
deficiency, pregnancy, pituitary disorder, or congenital
disease. Is hypothyroidism serious? Hypothyroidism can lead to
birth defects, heart problems, infertility, goiter (enlarged
thyroid), mental health problems, and a life-threatening
condition called myxedema. Can I prevent hypothyroidism? Most of
the causes of hypothyroidism are not under our control and are
instead the result of treatment for another disorder or a
congenital defect. How Do I Know If My Child Has Hypoth