Ultrasensitive thyrotropin 5.98μIU/ml may have hypothyroidism, which can be treated with medication under doctor’s supervision. The normal value of ultrasensitive thyrotropin is 0.35~5.5μIU/ml, so ultrasensitive thyrotropin 5.98μIU/ml may have hypothyroidism, but it has to be combined with other tests to clarify the diagnosis. If diagnosed with hypothyroidism, you can use levothyroxine tablets under the guidance of a doctor, the dose needs to be based on the patient’s condition, age and body weight, follow the doctor’s instructions to take, do not take the health care products containing thyroxine, diet to maintain a proper intake of iodine, you can also eat crude fiber food to promote gastrointestinal motility. Ultrasensitive thyrotropin 5.98μIU/ml, it is recommended to improve the examination under the guidance of the doctor, daily life to avoid fatigue, reduce strenuous activities, avoid emotional excitement.