Thyroid flares (or "flare-ups") are often triggered by stress, infections, iodine excess/deficiency, hormonal changes (like pregnancy), certain medications (e.g., amiodarone), radiation exposure, or underlying autoimmune issues (Hashimoto's/Graves'), causing symptoms of overactive (hyperthyroidism) or underactive (hypothyroidism) thyroid, like fatigue, anxiety, palpitations, weight changes, or tremors, depending on the specific condition and trigger.
Even if you're on hormone medication, you could get a flare-up of Hashimoto's. This could happen while your doctor is trying to work out the correct dose of your medicine or if you're not taking your pills regularly. It could also happen because of a physical or emotional trigger like: Lack of sleep.
Foods that may negatively impact your thyroid health
Goitrogens are found in cruciferous veggies like cabbage, cauliflower, bok choy, broccoli and soy. It is possible for goitrogens to impact thyroid health when eaten raw and in extremely large amounts and/or in those with an iodine deficiency.
Thyroiditis happens when the thyroid gland becomes inflamed, and its cells are damaged. This inflammation can have different causes depending on the type of thyroiditis. The most common cause is an autoimmune reaction, when the immune system mistakenly attacks the thyroid instead of protecting it.
For many people, a nutrient-dense, anti-inflammatory diet and consistent iodine intake help reduce triggers. Limiting added sugars and ultra-processed foods may also decrease the frequency and severity of flares.
How Can We Decrease Inflammation?
You may feel fine one day, only to wake up the next feeling exhausted, foggy-headed, and unable to shake the cold creeping through your body. These fluctuations often signal a Hashimoto's flare-up—a period when the immune system attacks the thyroid, disrupting normal function and worsening symptoms.
An autoimmune flare-up can significantly affect your daily life and sometimes last for days on end.
Thyroiditis is caused by an attack on the thyroid, causing inflammation and damage to the thyroid cells. Antibodies that attack the thyroid cause most types of thyroiditis. As such, thyroiditis is often an autoimmune disease, like juvenile (type 1) diabetes and rheumatoid arthritis.
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Avoid processed, sugary, and salty foods that can aggravate inflammation and worsen TED symptoms. Small, consistent changes to your hypothyroidism diet can make a big difference over time.
Stress as a Trigger for Autoimmune Thyroid Disorders
Most are triggered by a combination of genetic predisposition and environmental stressors. One potential trigger is emotional stress, which can elevate cortisol levels, weakening the immune system and increasing susceptibility in those already predisposed.
Here are eight thyroid healing practices you can start today.
The most common cause of hypothyroidism is an autoimmune disease called Hashimoto's disease. Autoimmune diseases happen when the immune system makes antibodies that attack healthy tissues. Sometimes that process involves the thyroid gland and affects its ability to make hormones. Thyroid surgery.
Symptoms of a thyroid storm include:
In some patients, sub-acute thyroiditis resolves rapidly without treatment, or with the help of anti-inflammatory drugs. If, however, you have persistent pain and other symptoms, a short course of steroids may be needed.
The most obvious symptom of subacute thyroiditis is pain in the neck caused by a swollen and inflamed thyroid gland. Sometimes, the pain can spread (radiate) to the jaw or ears. The thyroid gland may be painful and swollen for weeks or, in rare cases, months.
These can include insufficient treatment of the condition, nutritional factors, inadequate sleep, stress, and exposure to certain chemicals, toxins, and infections. In addition, certain medications, hormonal changes, and a lack of exercise can also contribute to the occurrence of autoimmune flare-ups.
Eating a thyroid-friendly diet can help reduce inflammation and decrease the severity of flare-ups. Try to eat meals that mostly consist of lean meat, fish high in omega-3's, and vegetables. Some studies suggest that eating a gluten-free diet may also help people with autoimmune thyroid conditions like Hashimoto's.
Thyroiditis has three phases:
Can thyroid nodules cause mucus in the throat? Yes. Hoarseness that won't go away, frequent coughing, or feeling a need to to keep clearing your throat may be symptoms of a thyroid nodule.
Thyroid belly is a term for weight gain around the belly area. It's linked to hypothyroidism, where the thyroid gland doesn't make enough hormones. This weight gain is often seen in the stomach area.