Silent thyroiditis is due to an immune reaction against the thyroid gland. The disorder can cause hyperthyroidism , followed by hypothyroidism .
Understanding silent thyroiditis seniors thyroid inflammation painless is important for seniors and their caregivers. the thyroid gland is located in the neck, just above where your collarbones meet in the middle.
What Are the Common Causes and Risk Factors?
The cause of the disease is unknown. But it is related to an attack against the thyroid by the immune system . The disease affects women more often than men.
The disease can occur in women who have just had a baby. It can also be caused by medicines such as interferon and amiodarone, and some types of chemotherapy , which affect the immune system.
What Are the Symptoms and Warning Signs?
The earliest symptoms result from an overactive thyroid gland (hyperthyroidism). These symptoms may last for up to 3 months.
Symptoms are often mild, and may include:
- Fatigue
, feeling weak - Frequent bowel movements
- Heat intolerance
- Increased appetite
- Increased sweating
- Irregular menstrual periods
- Mood changes, such as irritability
- Muscle cramps
-
Nervousness,
restlessness - Palpitations
- Weight loss
Later symptoms may be of an underactive thyroid (hypothyroidism), including:
- Cold intolerance
- Constipation
- Difficulty concentrating or thinking
- Dry skin
- Fatigue
- Hair loss
- Irregular (or heavy) menstrual periods in women
- Mood changes
- Weight gain
These symptoms can persist until the thyroid recovers normal function. The recovery of the thyroid can take many months in some people. Some people only notice the hypothyroid symptoms and do not have symptoms of hyperthyroidism to begin with.
📖 What Are Exams and Tests?
What Are Exams and Tests?
Your health care provider will examine you and ask about your symptoms and medical history.
A physical exam may show:
- Enlarged thyroid gland that is not painful to the touch
- Rapid heart rate
- Shaking hands ( tremor )
- Brisk reflexes
- Sweaty, warm skin
Tests that may be done include:
- Radioactive iodine uptake
- Thyroid hormones T3 (triiodothyronine) and free T4 (thyroxine)
- TSH
(thyroid stimulating hormone) - Erythrocyte sedimentation rate
(ESR) - C-reactive protein
(CRP)
Many providers now screen for thyroid disease before and after starting medicines that commonly cause this condition.
📖 How Is It Treated?
How Is It Treated?
Treatment is based on symptoms. Medicines called beta-blockers may be used to relieve rapid heart rate and excessive sweating.
📖 What Is Outlook (Prognosis)?
What Is Outlook (Prognosis)?
Silent thyroiditis often goes away on its own within 1 year. The acute phase usually ends within 3 months.
Some people develop hypothyroidism over time. They need to be treated with a medicine that replaces the thyroid hormone. Regular follow-ups with a provider are recommended.
The disease is not infectious. People cannot catch the disease from you. It also is not inherited within families like some other thyroid conditions.
📖 When to Contact a Medical Professional?
When to Contact a Medical Professional?
Contact your provider if you have symptoms of this condition.
Lymphocytic thyroiditis; Subacute lymphocytic thyroiditis; Painless thyroiditis; Postpartum thyroiditis; Thyroiditis – silent; Hyperthyroidism – silent thyroiditis
-
Thyroid gland
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Hollenberg A, Wiersinga W, Bartalena L, Feldt-Rasmussen U. Hyperthyroid disorders. In: Melmed S, Auchus RJ, Goldfine AB, Rosen CJ, Kopp PA, eds.
Williams Textbook of Endocrinology . 15th ed. Philadelphia, PA: Elsevier; 2025:chap 10.
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Updated by: Sandeep K. Dhaliwal, MD, board-certified in Diabetes, Endocrinology, and Metabolism, Springfield, VA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
- Hyperthyroidism
- Hypothyroidism
- Thyroid Diseases
Frequently Asked Questions
Key Takeaways
What Are the Common Causes and Risk Factors?
What Are the Symptoms and Warning Signs?
Fatigue , feeling weak Frequent bowel movements Heat intolerance Increased appetite Increased sweating Irregular menstrual periods Mood changes, such as irritability Muscle cramps Nervousness, restlessness Palpitations Weight loss Later symptoms may be of an underactive thyroid (hypothyroidism), including:
Cold intolerance Constipation Difficulty concentrating or thinking Dry skin Fatigue Hair loss Irregular (or heavy) menstrual periods in women Mood changes Weight gain These symptoms can persist until the thyroid recovers normal function.
What Are Exams and Tests?
Enlarged thyroid gland that is not painful to the touch Rapid heart rate Shaking hands ( tremor ) Brisk reflexes Sweaty, warm skin Tests that may be done include:
Radioactive iodine uptake Thyroid hormones T3 (triiodothyronine) and free T4 (thyroxine) TSH (thyroid stimulating hormone) Erythrocyte sedimentation rate (ESR) C-reactive protein (CRP) Many providers now screen for thyroid disease before and after starting medicines that commonly cause this condition. 📖 How Is It Treated?
How Is It Treated?
About the Author: This article was researched and written by the SilverWell Hub editorial team. It was medically reviewed by Dr. Sarah Mitchell, MD, Geriatrics.
Sources: This article is adapted from MedlinePlus, a service of the National Library of Medicine.
Disclaimer: This information is for educational purposes only. See our full Medical Disclaimer.
Published: July 28, 2026 | Next review: January 2027
