Hypothyroidism patients with elevated urinary iodine considerations may be hyperthyroidism, supplemental iodine agent overdose and other factors caused by the need for timely intervention to avoid the emergence of hyperthyroidism, other autoimmune thyroid diseases, etc., which may jeopardize the patient’s physical health. Urinary iodine elevation is common in hyperthyroidism, thyroiditis, take iodine agent overdose, etc. If hypothyroidism patients with urinary iodine elevation is considered to be levothyroxine sodium tablets overdose of medication leading to the occurrence of hyperthyroidism, or iodine deficiency caused by hypothyroidism patients in the treatment process of iodine supplementation caused by excessive iodine agent. Hypothyroidism patients with high urinary iodine should go to the hospital and ask the doctor to make a judgment.