There is no clear range for the normal value of thyrotropin after thyroid cancer surgery because the test method and testing reagents are different and the test results are different. If we use mIU/L to judge, the normal range of thyroid stimulating hormone is 0.3-5 mIU/L. Thyrotropin must be maintained at normal high value because thyrotropin secretion is impaired after thyroid cancer surgery and thyroid gland removal leads to low thyroid function. thyroid stimulation can be made in normal range value by supplementing with eugenol, which is thyroxine tablets, and as long as it is maintained in normal The range is basically normal.