Chronic thyroiditis is swelling (inflammation) of the thyroid gland that often results in reduced thyroid function (
Hashimoto's thyroiditis; Chronic lymphocytic thyroiditis; Autoimmune thyroiditis
Causes, incidence, and risk factors
Chronic thyroiditis or Hashimoto's disease is a common
The disease begins slowly. It may take months or even years for the condition to be detected. Chronic thyroiditis is most common in women and people with a family history of thyroid disease. It affects between 0.1% and 5% of all adults in Western countries.
Hashimoto's disease may, in rare cases, be associated with other
Less commonly, Hashimoto's disease occurs as part of a condition called type 1 polyglandular autoimmune syndrome (PGA I), along with:
- Fungal infections of the mouth and nails