Skip to Content
Living with hypothyroidism? Explore treatment options >>

Subclinical Hypothyroidism


Subclinical hypothyroidism is a condition that develops when your thyroid stimulating hormone (TSH) level is higher than normal. TSH is made in the brain and controls how much thyroid hormones are made. Thyroid hormones help control body temperature, heart rate, growth, and weight.



  • Thyroid replacement hormone will bring your thyroid hormone level back to normal.

  • Take your medicine as directed. Contact your primary healthcare provider (PHP) if you think your medicine is not helping or you have side effects. Tell him if you are allergic to any medicine. Keep a list of the medicines, vitamins, and herbs you take. Include the amounts, and when and why you take them. Bring the list or the pill bottles to follow-up visits. Carry your medicine list with you in case of an emergency.

Follow up with your PHP or endocrinologist as directed:

You will need to return for more blood tests to check your thyroid hormone level. Write down your questions so you remember to ask them during your visits.


The thyroid gland uses iodine to work correctly and to make thyroid hormones. Your PHP may tell you to eat foods that are rich in iodine. He will tell you how much of these foods you need to eat. Milk and seafood are good sources of iodine.

Contact your PHP or endocrinologist if:

  • You have a fever.

  • You have pain, redness, and swelling in your muscles and joints.

  • You have questions about your condition or care.

Seek care immediately or call 911 if:

  • You have sudden chest pain or trouble breathing.

  • You have swelling in your legs, ankles, or feet.

  • You faint or have a seizure.

  • Your heart is beating faster or slower than is normal for you, or you feel restless.

  • Your signs and symptoms return or become worse.

© 2015 Truven Health Analytics Inc. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. All illustrations and images included in CareNotes® are the copyrighted property of A.D.A.M., Inc. or Truven Health Analytics.

The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Learn more about Subclinical Hypothyroidism (Discharge Care)