Thyroid-Stimulating Hormone or "TSH" is a hormone made and secreted by your anterior pituitary gland in the brain. TSH travels in the bloodstream to get from the brain to the thyroid gland where it regulates thyroid gland function. TSH is the most commonly used marker for screening for thyroid diseases and conditions. Low TSH generally means the thyroid gland is producing too much thyroid hormone. This condition is known as hyperthyroidism, often called an overactive thyroid. High TSH generally means the thyroid gland is not producing enough thyroid hormone. This condition is called hypothyroidism, or an underactive thyroid.
Thyroid-Stimulating Hormone or "TSH" is a hormone made and secreted by your anterior pituitary gland in the brain. TSH travels in the bloodstream to get from the brain to the thyroid gland where it regulates thyroid gland function. TSH is the most commonly used marker for screening for thyroid diseases and conditions. Low TSH generally means the thyroid gland is producing too much thyroid hormone. This condition is known as hyperthyroidism, often called an overactive thyroid. High TSH generally means the thyroid gland is not producing enough thyroid hormone. This condition is called hypothyroidism, or an underactive thyroid.
