A hashimoto's, or goitrous thyroiditis is an autoimmune hypothyroidism due to antibodies that bind to the thyroid stimulating hormone TSH receptor. The result of this binding is increased size of the thyroid gland without functional activation or synthesis of the thyroid hormone.
Hashimoto's thyroiditis may be diagnosed only during investigations for asymptomatic enlarged thyroid gland rather than for presenting symptoms of hypothyroidism. As an autoimmune disease, a hashimoto's hypothyroidism may be associated with other autoimmune diseases like pernicious anemia due to antibodies against the gastric mucosa causing its atrophy. Decreased iron and folic acid absorption are also common in cases of hypothyroidism probably due to associated mucosal damage of the GI tract.
I advise you to keep on follow up with your doctor for further investigations of the underlying cause. Identification of the underlying cause is critical for the proper management.
This answer does not substitute for direct medical consultation.
Dr. Safaa Mahmoud.
MB BCh, MSc Internal Medicine. MD Medical Oncology.
PhD Experimental Medicine and Biochemical Science.