How do you know if you are iodine deficient if you have subclinical hypothyroidism?

Patients with subclinical hypothyroidism can determine whether there is iodine deficiency through urine iodine measurement.
Iodine deficiency or iodine excess may cause thyroid disease, so patients with subclinical hypothyroidism can determine whether there is iodine deficiency through urine iodine measurement, if the urine iodine level is significantly higher than the normal level indicates that the patient has iodine excess, if the urine iodine level is significantly lower than the normal level indicates that the patient has iodine deficiency.
Patients with subclinical hypothyroidism should be treated with levothyroxine sodium tablets under the guidance of a specialist if their serum thyrotropin level is higher than 10mU/L or if they have hyperlipidemia.
Patients diagnosed with subclinical hypothyroidism who want to determine whether they are iodine deficient can go to the hospital and ask the doctor to make a judgment.