Elevated thyrotropin receptor antibodies, or TRAb for short, are a group of autoantibodies that are primarily anti-thyroid hormone receptors on the thyroid cell membrane. This is because patients with Graves’ hyperthyroidism have a 95% or greater chance of having elevated thyrotropin receptor antibodies. There are several possible causes of elevated thyrotropin receptor antibodies: 1. Thyroiditis: If a patient has thyroid inflammation, it may trigger elevated thyrotropin receptor antibodies, leading to Graves’ disease; 2. Autoimmune system disease: If a patient has an autoimmune system disease, the immune system may have a defense response to thyrotropin receptors, which usually produces thyrotropin elevated thyroid hormone receptor antibodies. The presence of elevated thyrotropin receptor antibodies can lead not only to hyperthyroidism, but also sometimes to hypothyroidism and alternating thyroid function. It is recommended that patients should have their thyroid function checked for T3 and T4 levels. If the T3 and T4 levels are elevated, active anti-hyperthyroidism treatment should be given; if the T3 and T4 levels are reduced, active supplementation with levothyroxine sodium tablets should be given. However, it is difficult to restore the thyrotropin receptor antibodies to normal levels, and there are no specific medications to lower the antibodies.