What Are the Signs & Symptoms of Underactive Thyroid Disease?
Hypothyroidism is a condition of the thyroid not producing enough thyroxine (T4) and triiodothyronine (T-3). An underactive thyroid is the result of the pituitary gland releasing too much thyroid-stimulating hormone (TSH), therefore causing the thyroid to not produce enough thyroid hormones. The lack of thyroid hormone can cause an array of symptoms.