Thyroid Nodules
Thyroid nodules are lumps within the thyroid gland. They are very common, usually harmless, but sometimes need checking to rule out cancer or an overactive nodule.
Causes & risk factors
- Overgrowth of thyroid tissue
- Iodine deficiency in some regions
- Fluid-filled cysts
- Thyroid inflammation
- Rarely, thyroid cancer
Common symptoms
Tests & diagnosis
Treatment & management
- Monitoring with ultrasound if small and benign
- Biopsy to check suspicious nodules
- Treating an overactive nodule (medicines, radioactive iodine or surgery)
- Surgery if cancer is suspected or the nodule is large
- Regular follow-up
When to see a doctor urgently
- A rapidly enlarging neck lump
- A hard or fixed lump, or swollen neck glands
- Hoarse voice or trouble swallowing
- Palpitations, weight loss and heat intolerance
Not a diagnosis. MedDroid gives general educational information about thyroid nodules. It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Are thyroid nodules cancer?
Most are not — only a small proportion are cancerous. Ultrasound and, when needed, a fine-needle biopsy help tell benign from suspicious nodules.
Do all nodules need removing?
No. Small, benign nodules are usually just monitored. Removal is for suspicious, large or overactive nodules.
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MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.