Our TSH blood test is used to help determine overall thyroid function by measuring levels of Thyroid Stimulating Hormone. Thyroid-stimulating hormone (TSH) is produced when the hypothalamus releases a substance called thyrotropin-releasing hormone (TRH). TRH then triggers the pituitary gland to release TSH.

TSH stimulates the thyroid to produce  and ultimately . These hormones stimulate the metabolism of nearly every tissue in the body.

• An underactive thyroid is known as hypothyroidism. Hypothyroidism can cause symptoms of weight gain, tiredness, dry skin, constipation, the sensation of being too cold, and/or frequent menstrual periods. Hashimoto's thyroiditis is the most common cause of hypothyroidism.
• An overactive thyroid is known as hyperthyroidism. Hyperthyroidism can cause symptoms of weight loss, rapid heart rate, diarrhea, the sensation of feeling too hot, and/or irregular menstrual periods