Hypothyroidism, also known as underactive thyroid, is a medical condition characterized by an insufficient production of thyroid hormones by the thyroid gland. The thyroid gland, located in the neck, plays a crucial role in regulating various bodily functions, including metabolism, growth, and development.
When the thyroid gland fails to produce enough hormones, it can lead to a range of symptoms and health issues. Some common signs of hypothyroidism include fatigue, weight gain, sensitivity to cold, dry skin, hair loss, and depression. The condition can affect people of all ages, but it is more prevalent in women and older individuals.
Hypothyroidism can be caused by several factors, including autoimmune diseases (such as Hashimoto's thyroiditis), certain medications, radiation therapy, congenital disorders, and iodine deficiency. It can also be a result of surgical removal of the thyroid gland or damage to the gland due to inflammation.
Diagnosis of hypothyroidism typically involves a combination of medical history evaluation, physical examination, and blood tests to measure the levels of thyroid-stimulating hormone (TSH) and thyroid hormones (T3 and T4). Treatment for hypothyroidism usually involves lifelong hormone replacement therapy, where synthetic thyroid hormones are prescribed to restore hormone levels in the body.
It is important for individuals with hypothyroidism to regularly monitor their hormone levels and adjust medication dosage as needed. With proper management and treatment, most people with hypothyroidism can lead normal, healthy lives.