Thyrotropin 5.0 μIU/ml is in the normal range and is therefore normal. The normal value of thyrotropin ranges from 0.35 to 5.5 μIU/ml, and its main function is to regulate the synthesis and secretion of thyroid hormones by the thyroid gland in order to maintain the body’s thyroxine level. Elevated thyrotropin levels may be associated with primary hypothyroidism, goitre cell tumors, and iodine-deficiency endemic goiter. Decreased thyrotropin levels may be associated with hyperthyroidism, hypopituitary hypothyroidism, and others. In case of thyrotropin hormone abnormality, it is recommended to consult a doctor and standardize the treatment under the doctor’s guidance.