Jennifer Hawke-Petit and her two daughters were raped and murdered, while her husband, Dr. William Petit, was injured during a home invasion in Cheshire, Connecticut.
This signal is called thyroid stimulating hormone (TSH). As the name implies, this hormone stimulates the thyroid to produce thyroid hormone and to grow in size. This abnormal growth in size produces what is termed a âgoiter.â Thus, iodine deficiency is one cause of goiter development. Wherever iodine deficiency is common, goiter will be common.
Subclinical hypothyroidism (mildly underactive thyroid) is a condition in which thyrotropin (TSH) levels have started to increase in response to an early decline in T4 levels in the thyroid. However, blood tests for T4 are still normal. The person may have mild symptoms (usually slight fatigue) or none at all.