WHAT YOU NEED TO KNOW: What are autoimmune thyroid disorders? Autoimmune thyroid disorders are when your immune system attacks your thyroid gland. The thyroid gland is a butterfly-shaped organ that is found in the front part of your neck. Thyroid hormones regulate body temperature, heart rate, and weight gain or loss. What are the kinds of autoimmune thyroid disorders? Autoimmune thyroid disorders can cause hyperthyroidism or hypothyroidism. Hyperthyroidism is when the thyroid gland makes too much thyroid hormone. Graves disease is the most common kind of autoimmune hyperthyroidism. Hypothyroidism is when the thyroid gland does not make enough thyroid hormone. Hashimoto thyroiditis is the most common kind of autoimmune hypothyroidism. What increases my risk for autoimmune thyroid disorders? - Family history of autoimmune disease
- Not enough iodine in your diet
- Stress
- Smoking
What are the signs and symptoms of autoimmune thyroid disorders? You may have a goiter (enlarged thyroid gland) that feels like a lump on your neck. You may also have signs and symptoms of one or both conditions: - Hyperthyroidism:
- Nervousness, restlessness
- Tired and hot
- Diarrhea
- Tremors and a fast heartbeat
- Weight loss and hunger, even after you eat
- Eyes that bulge
- Hypothyroidism:
- Weakness, muscle aches, or joint aches
- Dry, flaky skin or thin and brittle fingernails or hair
- Changes in your voice, such as hoarseness
- Sudden weight gain
- Sleepiness or problems thinking clearly
- Slow heartbeat or trouble breathing
How are autoimmune thyroid disorders diagnosed? - Blood tests check the level of thyroid hormones in your blood.
- An ultrasound uses sound waves to show pictures of your thyroid on a monitor.
- A thyroid scan shows how well your thyroid is working. You may be given a dye before the pictures are taken to help healthcare providers see the pictures better. Tell the healthcare provider if you have ever had an allergic reaction to contrast dye.
- Fine needle biopsy is a procedure where a small needle is used to take a sample of your thyroid gland for tests.
How are autoimmune thyroid disorders treated? - Thyroid medicines replace, increase, or decrease your thyroid hormone levels. They may also help control your signs and symptoms. You may need other medicines to treat fast heartbeats, nervousness, or trembling.
- A radioactive form of iodine is given to treat hyperthyroidism. It damages or kills some of the thyroid gland cells.
- Surgery to remove your thyroid may be needed if other treatments do not work.
When should I contact my healthcare provider? - You have a fever.
- Your signs and symptoms return or become worse.
- You have pain, redness, and swelling in your muscles and joints.
- You have questions or concerns about your condition or care.
When should I seek immediate care or call 911? - You have sudden chest pain or trouble breathing.
- Your heart is fluttering and you feel restless.
- You have slurred speech, problems with balance or walking, or cannot think clearly.
- You have swelling in your legs, ankles, or feet.
- You feel faint or had a seizure.
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