Thyrotropin Receptor Antibody (TRAb) 33.59 IU/L is higher than the normal value, which is serious if combined with thyroid function abnormality, but less serious if the thyroid function is normal. TRAb is a type of thyroid autoantibody, positive for Graves’ disease, which needs to be diagnosed in conjunction with the results of thyroid function. If hyperthyroidism is present, a positive TRAb is an important marker for the diagnosis of Graves’ disease and distinguishes it from hyperthyroidism caused by other etiologies. Detection of TRAb helps in the assessment of treatment efficacy, and continued treatment with low-dose antithyroid medication until TRAb turns negative can reduce the rate of recurrence of Graves’ disease. If the thyroid function is normal and the TRAb is positive, no specific treatment is needed and follow-up is sufficient. Therefore, the thyrotropin receptor antibody of 33.59 IU/L requires further consultation with an endocrinologist to complete the thyroid function tests and guide the next treatment plan after clarifying the diagnosis.