Whether or not low thyroid stimulating hormone is important needs to be discussed in each case. It is more important when symptoms are present, suggesting that hyperthyroidism is more likely. Asymptomatic low thyroid stimulating hormone is more likely to indicate subclinical hyperthyroidism. Specific cases are analyzed as follows. 1. Hyperthyroidism: can cause a series of high metabolic symptoms, such as panic, excessive sweating, wasting, etc., some patients may appear serious Graves’ ophthalmopathy, which is more important. It is necessary to actively consult the doctor for treatment and take relevant medication under the doctor’s guidance. 2. Subclinical hyperthyroidism: belongs to the special type of hyperthyroidism, may be transient, no symptoms generally do not need to be treated, regular review can be, relatively speaking, does not matter, but to pay attention to. If there is a low thyroid stimulating hormone, it is recommended to consult a doctor in time for further examination to clarify the diagnosis, and follow the doctor’s instructions for treatment.