Ultrasensitive thyroid stimulating hormone 0.028mU/L is generally abnormal and is an abnormal indicator of a low state. Ultrasensitive thyroid stimulating hormone is one of the more common indicators of thyroid function in the clinic, which can assess thyroid function, when the ultrasensitive thyroid stimulating hormone is 0.028mU/L, it is an abnormal result, which belongs to the decline of ultrasensitive thyroid stimulating hormone level. Decreased levels of ultrasensitive thyroid stimulating hormone are mainly seen in hyperthyroidism, secondary hypothyroidism, etc. Excessive use of thyroid medications such as levothyroxine sodium tablets can also lead to decreased levels of this hormone. If you find a decrease in the level of ultrasensitive thyroid stimulating hormone, you should go to a regular medical institution in time to get a clear understanding of the cause of the problem and to have the right treatment in time, so as to avoid delaying your condition.