ThyroidFunction

Health

Understanding High TSH Levels: What You Need to Know

Causes of High TSH Levels High TSH (thyroid-stimulating hormone) levels can indicate an underactive thyroid gland, also known as hypothyroidism. This condition can occur for a variety of reasons, including: Autoimmune diseases: The most common cause of hypothyroidism is an autoimmune disorder called Hashimoto’s thyroiditis. This occurs when the immune system attacks the thyroid gland, causing inflammation and damage. Congenital…