What Causes Hypothyroidism?

Q: What Causes Hypothyroidism?

Causes: Hashimoto's (most common), thyroid surgery, radiation, medications (lithium, amiodarone), iodine deficiency, and congenital.

Hashimoto’s thyroiditis is the most common cause in developed countries.

Causes by Frequency

1. Hashimoto’s (autoimmune)
2. Thyroid surgery
3. RAI treatment
4. Radiation to neck
5. Medications
6. Iodine deficiency
7. Congenital

Risk Factors

Female sex (5–10×)
Age above 60
Family history
Other autoimmune conditions

Source: American Thyroid Association, NLM MedlinePlus.

Ratings summarize government-reported measures — they don't capture your personal needs. Visit the facility, ask about staffing and services, and use CMS checklists. This profile is informational only and is not a recommendation.

Compare lab testing options near you ↗ (affiliate link)