High thyroid stimulating hormone 6.8μIU/ml may be caused by subclinical hypothyroidism, hypothyroidism, subclinical hypothyroidism or hypothyroidism after standardized treatment is generally not serious, but if not standardized treatment may induce complications, which is more serious, it is recommended to consult a doctor. The normal range of thyroid stimulating hormone is 0.35-5.5μIU/ml, so the high thyroid stimulating hormone of 6.8μIU/ml may be caused by hypothyroidism, subclinical hypothyroidism and other diseases. Subclinical hypothyroidism with thyrotropin 6.8μIU/ml without dyslipidemia can be reviewed regularly and is generally not serious. Patients with hypothyroidism need to take levothyroxine sodium tablets as prescribed by the doctor, after standardized treatment to stabilize the thyroid hormone level control is not serious, but non-standardized treatment induced heart failure, mucous edema coma and other diseases is more serious. If thyrotropin level is 6.8μIU/ml, it is recommended to go to the hospital and ask the doctor to make a judgment.