Therefore, most people who live in iodine deficient areas have goitre, thus allowing them to produce enough thyroid hormone for normal body function. Once thyroid hormone levels are restored, TSH secretion stabilizes at a high level. Thyroid Disorders too much thyroid hormone production or hyperthyroidism. The state of normal thyroid function is called euthyroidism. Abnormalities of the thyroid gland are common.
All thyroid disorders are much more common in women than in men.
Each affects about 1 in 100 of the population. Other less common causes of thyroid disease include nodule, thyroid cancer, subacute thyroiditis and primary hypothyroidism. In this disease, the goitre is due not to TSH but to this unique antibody. The most common cause of this is a cyst or nodule, which may be benign or malignant. Occasionally there are many nodules.