Get proper diagnosis first. Then explore your treatment options.
You know something’s going on with your thyroid: maybe symptoms, abnormal blood tests, or a neck lump. But you’re not sure exactly what condition you have or what treatments make sense. That’s completely normal. Thyroid conditions can be confusing, and proper diagnosis is essential before choosing treatment.
This page helps you understand common thyroid conditions, what symptoms suggest what problems, and how to get properly evaluated. Once you have a clear diagnosis, you can explore whether thermal ablation or other treatments are right for you.
First step: accurate diagnosis. Treatment depends entirely on what specific condition you have. Thyroid nodules, hyperthyroidism, hypothyroidism, goiter, and thyroid cancer all require different approaches. Get evaluated by a thyroid specialist before making treatment decisions.
Thyroid care is shifting toward preservation
If your information about thyroid treatment is a few years old, it may be out of date. Two developments in 2025 made thyroid-preserving options easier to access, and both are worth knowing before you agree to surgery.
The 2025 ATA guidelines recognize alternatives to surgery
The 2025 American Thyroid Association guidelines for differentiated thyroid cancer formally address active surveillance and percutaneous ablation as management options for selected patients, alongside surgery. For benign nodules, the ATA has published a dedicated statement on the safe performance and adoption of ablation techniques.
What it means: Watching a small cancer, or shrinking a nodule with heat instead of removing the gland, is now recognized guidance rather than a fringe choice, for the right patients.
Insurance codes for thyroid RFA arrived in 2025
Effective January 1, 2025, the American Medical Association established two Category 1 CPT codes, 60660 and 60661, specifically for percutaneous radiofrequency ablation of thyroid nodules. Medicare assigned payment values in the 2025 fee schedule. Before this, RFA was billed as an “unlisted” procedure, which caused inconsistent coverage.
What it means: A dedicated code signals mainstream acceptance and a clearer billing path. Coverage still varies by plan and usually needs prior authorization, and out-of-pocket costs remain common, but the direction is toward broader access.
Take it to your appointment: If a physician tells you surgery is your only option, ask specifically about active surveillance and thermal ablation, and whether your case can be billed under CPT 60660. The answer tells you whether you are talking to a specialist who offers the full range of modern options.
What your symptoms might indicate
Different thyroid conditions cause different symptom patterns. Match your symptoms below to understand what you might have. Remember: symptoms alone don’t diagnose. You need blood tests and imaging.
Hyperthyroidism symptoms (overactive thyroid)
- Racing heart, palpitations
- Anxiety, nervousness, tremors
- Weight loss despite normal appetite
- Heat intolerance, excessive sweating
- Difficulty sleeping
- Frequent bowel movements
- Eye bulging (if Graves’ disease)
Hypothyroidism symptoms (underactive thyroid)
- Fatigue, sluggishness
- Weight gain
- Cold intolerance
- Constipation
- Dry skin, hair loss
- Depression, brain fog
- Slowed heart rate
Thyroid nodule symptoms (often no symptoms)
- Usually discovered incidentally on imaging
- Visible neck lump (if large)
- Difficulty swallowing (if pressing on esophagus)
- Voice changes (if pressing on nerve)
- Neck pressure or discomfort
- Sometimes hyperthyroid symptoms (if toxic nodule)
Goiter symptoms (enlarged thyroid)
- Visible neck swelling
- Tight feeling in throat
- Difficulty swallowing or breathing (if large)
- Coughing when lying down
- May have hyperthyroid or hypothyroid symptoms
- Often no symptoms with small goiters
Important: Many thyroid conditions are asymptomatic. Thyroid nodules, subclinical hyperthyroidism, mild hypothyroidism, and small goiters often cause no symptoms and are discovered through routine blood tests or imaging. Lack of symptoms doesn’t mean lack of condition.
What you might have
These are the most common thyroid conditions we see. Understanding what each one is helps you know what questions to ask and what treatments to research.
Thyroid Nodules
What it is: Lumps or growths in the thyroid gland. Extremely common: about half of people over 50 have nodules on ultrasound. Roughly 90–95% are benign (not cancer).
Diagnosis needed: Ultrasound to see nodules, possible biopsy if suspicious features, thyroid function tests.
Treatment options: Observation for benign nodules, thermal ablation for large, growing, or symptomatic nodules, surgery if cancer suspected.
Goiter
What it is: Enlarged thyroid gland. Can be diffuse (whole gland enlarged) or multinodular (multiple nodules causing enlargement). Often visible or palpable neck swelling.
Diagnosis needed: Physical exam, ultrasound to measure size, thyroid function tests to check if producing too much or too little hormone.
Treatment options: Observation if asymptomatic, thermal ablation for symptomatic goiter, surgery if very large or compressing airways.
Hyperthyroidism
What it is: Thyroid produces too much hormone. Two main causes: toxic nodules (treatable with ablation) or Graves’ disease (autoimmune, requires medication or RAI/surgery).
Diagnosis needed: Blood tests (low TSH, high T4/T3), radioactive iodine uptake scan to determine cause, possible antibody testing.
Treatment options: Thermal ablation for toxic nodules, medications for Graves’ disease, avoid radioactive iodine when possible (often causes permanent hypothyroidism over time).
Thyroid Cancer
What it is: Malignant growth in thyroid. Most common types (papillary, follicular) are slow-growing with excellent prognosis. Often discovered as a nodule on ultrasound.
Diagnosis needed: Fine needle aspiration (biopsy) of suspicious nodule, ultrasound characteristics, sometimes molecular testing.
Treatment options: Surgery remains the primary treatment (lobectomy or total thyroidectomy). For very low-risk cancers, the 2025 ATA guidelines recognize active surveillance, and international consensus recognizes thermal ablation as a first-line option for T1aN0M0 papillary cancer (1 cm or smaller) at experienced centers. Radioactive iodine is used after surgery only when indicated.
Primary Hyperparathyroidism
What it is: Parathyroid gland (small glands near the thyroid) produces too much parathyroid hormone, causing high calcium. Often confused with thyroid problems but a separate condition.
Diagnosis needed: Blood tests (high calcium, high parathyroid hormone), imaging to locate adenoma (sestamibi scan, ultrasound).
Treatment options: Observation if asymptomatic and criteria for surgery are not met, thermal ablation as an emerging option at experienced centers, surgery when intervention is needed.
Not sure what you have? Start here
What tests you’ll need
Accurate diagnosis requires the right combination of blood tests, imaging, and sometimes biopsy. Here’s what to expect and what each test tells your doctor.
Standard thyroid evaluation includes:
Blood Tests
- TSH (thyroid stimulating hormone): Best screening test. Low TSH suggests hyperthyroidism, high TSH suggests hypothyroidism.
- Free T4 and Free T3: Direct measurement of thyroid hormone levels. Confirms whether thyroid is overactive or underactive.
- Thyroid antibodies: TPO antibodies for Hashimoto’s, TSI/TRAb for Graves’ disease. Identifies autoimmune causes.
- Calcium and PTH: If parathyroid problem suspected. High calcium with high PTH indicates hyperparathyroidism.
Imaging Studies
- Thyroid ultrasound: Shows nodules, measures size, assesses suspicious features, and assigns an ACR TI-RADS risk score that guides whether biopsy is needed. First-line imaging for thyroid evaluation.
- Radioactive iodine uptake scan: For hyperthyroidism only. Shows if uptake is diffuse (Graves’) or focal (toxic nodule). Essential for treatment planning.
- Sestamibi scan: For parathyroid adenomas. Shows location of overactive parathyroid gland.
Biopsy (if needed)
- Fine needle aspiration (FNA): For nodules with suspicious ultrasound features or certain size thresholds. Determines if a nodule is benign or malignant. Insurers often require benign FNA cytology before approving ablation, so keep your report.
What to bring to your appointment
Previous test results:All thyroid blood tests (TSH, T4, T3, antibodies), previous ultrasounds with TI-RADS scores, any scans performed, biopsy results if done.
Symptom timeline:When symptoms started, how they’ve progressed, what makes them better or worse.
Family history:Thyroid disease, thyroid cancer, autoimmune conditions in family members.
Current medications:All medications including over-the-counter, supplements, particularly biotin (interferes with thyroid tests).
Questions to ask your doctor
“What specifically is my diagnosis?”Get a clear answer: nodule vs goiter vs hyperthyroidism vs cancer.
“What tests do I need to confirm this?”Understand the diagnostic workup plan.
“What are my treatment options?”Ask about observation, thermal ablation, medication, and surgery, all options.
“Is thermal ablation an option for my condition?”Many doctors don’t mention ablation. Ask specifically, and ask whether it can be billed under CPT 60660.
When is thermal ablation appropriate?
Once you have a clear diagnosis, you can determine whether thermal ablation is right for you. Ablation treats specific thyroid and parathyroid conditions effectively while preserving function and avoiding surgery.
Thermal ablation is an excellent option for:
- Benign thyroid nodules that are large, growing, symptomatic, or cosmetically concerning
- Toxic thyroid nodules causing hyperthyroidism, preserving thyroid function while correcting hormone levels
- Toxic multinodular goiter (lower cure rate but avoids surgery)
- Goiter causing symptoms like difficulty swallowing or visible neck swelling
- Parathyroid adenomas in select cases (emerging application, seek experienced centers)
- T1aN0M0 papillary thyroid cancer (1 cm or smaller, no lymph node involvement) at experienced centers, per 2024 international consensus
- Recurrent thyroid cancer in the neck (lymph nodes or thyroid bed recurrence)
Thermal ablation is not appropriate for:
- Graves’ disease (whole-gland disease, requires medication or surgery/RAI)
- Hypothyroidism (medication is the treatment; ablation would worsen it)
- Larger or higher-risk thyroid cancers such as T1b and above, where surgery or surveillance is preferred
- Suspicious nodules that haven’t been biopsied (need diagnosis first)
- Nodules with suspicious biopsy but not definite cancer (surgical diagnosis usually needed)
- Substernal goiter extending well into the chest (may need surgery for complete access)
- Extensive multinodular goiter where preservation of thyroid function is uncertain
Key principle: Thermal ablation excels at treating focal problems (specific nodules, adenomas) while preserving surrounding normal tissue. It cannot treat diffuse whole-gland problems like Graves’ disease or replace thyroid hormone in hypothyroidism.
Next steps to get diagnosed and treated
Clear diagnosis comes first. Once you know exactly what you have, you can make informed decisions about whether thermal ablation, observation, medication, or surgery is right for you.
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Get comprehensive evaluation
Schedule a consultation with a thyroid specialist. Bring all previous test results. Get complete blood work, imaging, and biopsy if needed. Establish a clear diagnosis before discussing treatment.
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Explore treatment options
Once diagnosed, research all appropriate treatments for your specific condition. Read our condition-specific pages. Ask your specialist about thermal ablation if applicable. Understand observation, medication, and surgical options.
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Make informed decision
Choose treatment that matches your diagnosis, symptoms, goals, and preferences. Consider whether preserving thyroid function matters to you. Ask about success rates specific to your condition. Get a second opinion if uncertain.
Why choose a specialist who offers thermal ablation
Even if ablation ends up not being right for you, specialists who offer it typically provide more comprehensive evaluation and more treatment options. They can discuss observation, medication, ablation, and surgery, giving you unbiased guidance on which approach truly matches your situation.
Specialists limited to surgery may not mention ablation or observation when these might be better options. Specialists offering multiple modalities can tailor treatment to your specific diagnosis and preferences rather than defaulting to one approach.
Condition-specific resources
Once you have a diagnosis, explore our detailed pages for your specific condition. Each covers treatment options, outcomes data, and decision frameworks.
Thyroid Nodules
Understanding observation criteria, when ablation is appropriate, volume reduction rates, and avoiding unnecessary surgery.
Read GuideGoiter
Preserving thyroid function, thermal ablation volume reduction, avoiding hypothyroidism from surgery.
Read GuideHyperthyroidism
Toxic nodules vs Graves’ disease, thermal ablation vs radioactive iodine, preserving thyroid function.
Read GuideThyroid Cancer
Active surveillance for small cancers, thermal ablation criteria, recurrent cancer treatment.
Read GuidePrimary Hyperparathyroidism
Observation guidelines, thermal ablation outcomes, when surgery is necessary.
Read GuideAll Conditions
Browse all thyroid and parathyroid condition guides to understand your diagnosis and options.
View AllGuidelines and evidence cited on this page
The guidance above reflects current professional guidelines and peer-reviewed evidence. Primary sources:
- 2025 American Thyroid Association Management Guidelines for Adult Patients with Differentiated Thyroid Cancer. American Thyroid Association. thyroid.org
- Sinclair CF, Kim JH, et al. General Principles for the Safe Performance, Training, and Adoption of Ablation Techniques for Benign Thyroid Nodules: An American Thyroid Association Statement. Thyroid. PMC10611977
- International Expert Consensus on Ultrasound-Guided Thermal Ablation for T1N0M0 Papillary Thyroid Carcinoma (2024), recognizing thermal ablation as a first-line option for T1aN0M0 disease.
- Park SI, et al. Radiofrequency ablation for treatment of benign thyroid nodules: 10-year experience. Thyroid. 2024;34(8):990-998. PMID: 39041607
- New Category 1 CPT codes 60660 and 60661 for percutaneous radiofrequency ablation of thyroid nodules, effective January 1, 2025 (American Medical Association; Medicare Physician Fee Schedule).