Whether high free thyroxine ft4 needs to be treated or not needs to be further decided in conjunction with the level of thyroid stimulating hormone and the patient’s symptoms, which may be given under observation, medication and so on. High free thyroxine ft4 and decreased levels of thyroid stimulating hormone, accompanied by panic, shortness of breath, excessive sweating, protruding eyes and other typical manifestations of hyperthyroidism, need to seek medical attention, under the guidance of the doctor to give the appropriate treatment, such as antithyroid medication, such as methimazole and so on. If the free thyroxine ft4 is high, the thyroid stimulating hormone level is normal and there is no hypermetabolism, close observation and regular checkups can be considered. Thyroid disease is an endocrine disease, in addition to medication, it is also necessary to adjust the lifestyle, maintain a regular work schedule, and control the iodine content in the diet. If there is any discomfort, consult a doctor.