Can you not have hypothyroidism even though a high TSH level?

It's possible to have a high TSH level within the normal range and not have hypothyroidism. This condition is called subclinical hypothyroidism, also known as mild hypothyroidism. In this condition, the TSH levels are elevated, but the thyroid hormone levels are still within normal limits.

Subclinical hypothyroidism does not always lead to the development of full-blown hypothyroidism, but it can increase the risk of developing it in the future. Therefore, individuals with subclinical hypothyroidism are often monitored regularly with thyroid function tests to track any changes and potentially receive treatment if symptoms develop or TSH levels continue to rise.