No surgery
A fine needle under ultrasound with local anesthesia only
Shrink benign thyroid nodules — without surgery
Thyroid Nodule Ablation (Radiofrequency Ablation, RFA)
A non-surgical option for benign thyroid nodules using a fine needle and thermal (radiofrequency) energy under real-time ultrasound guidance. The nodule gradually shrinks by about 50–80% of its volume over 6–12 months — with no neck incision, fast recovery, and same-day discharge for most patients. Individual results vary.
What a thyroid nodule is — and when it needs treating
Thyroid ablation is a non-surgical treatment that delivers thermal (radiofrequency) energy through a fine needle into the nodule under ultrasound guidance, causing it to shrink gradually over several months. It is intended for benign (non-cancerous) nodules and aims to relieve symptoms such as neck tightness, difficulty swallowing, or a visible lump — while preserving normal thyroid function.
Used for thyroid nodules confirmed benign by fine-needle aspiration (FNA), typically when the nodule causes symptoms or cosmetic concern. Specific indications, such as overactive nodules, are decided case by case by the physician.
No neck scar
Healthy thyroid tissue is preserved
Fast recovery
About 1 hour of observation; most go home the same day
Structured follow-up
Ultrasound at 1, 3, 6 and 12 months
How the treatment works
Thermal energy is delivered through the needle tip into the nodule. The heat breaks down cells within the nodule, which the body gradually reabsorbs so the nodule shrinks over time — without any incision or removal of the thyroid gland, reducing the likelihood of needing thyroid hormone replacement afterward.
The physician guides the needle with ultrasound throughout the procedure for accuracy and speaks with you periodically to monitor for symptoms such as voice changes — allowing careful, attentive treatment.
Why it matters
- The nodule shrinks gradually rather than being removed, so the healthy thyroid keeps working.
- Normal thyroid tissue is preserved, so hormone replacement is usually not required, unlike removal of the gland.
- Only nodules confirmed benign are treated this way — cancer is managed along a different pathway.
Treatment options
Where ablation sits among the options
Care for a thyroid nodule runs from simple surveillance through to surgery. Ablation sits in the middle — it does not replace surgery.
Watch and re-scan
- Small, benign, and causing no symptoms
- Ultrasound review at intervals
- A legitimate outcome — not every nodule needs treating
Radiofrequency ablation (RFA)
- Nodules confirmed benign by fine-needle aspiration (FNA)
- Symptoms from the nodule, or cosmetic concern
- Local anaesthesia, no incision, usually home the same day
Thyroid surgery
- Nodules suspicious for or confirmed as cancer
- Very large nodules causing significant compression
- Removes the nodule outright and allows full histology
Surgery remains the correct answer for cancer and for compressive disease. Ablation is an option in the middle band only.
Comparison
Ablation compared with surgery
This table is an overview of how the two approaches differ — not a statement that either is superior. The right choice depends on the type and size of the nodule and on an individual physician assessment.
| Comparison | Radiofrequency ablation (RFA) | Thyroid surgery |
|---|---|---|
| Anaesthesia | Local anaesthesia only, no general anaesthesia | General anaesthesia |
| Incision and scarring | A fine needle — no neck incision | A neck incision and a permanent scar |
| Hospital stay | Outpatient, around 1 hour of observation | Inpatient stay as planned by the surgeon |
| Thyroid hormone afterward | Preserves normal thyroid tissue, so replacement is usually not required | Replacement may be required, depending on how much gland is removed |
| What happens to the nodule | Shrinks gradually over several months | Removed at once, and sent for full histology |
| Which nodules it suits | Only nodules confirmed benign | Both benign and malignant nodules |
On the day
Step by step on the day of the procedure
The procedure is short and performed as an outpatient. You stay awake throughout so the physician can monitor how you feel.
01
You lie flat with the neck slightly extended.
02
The physician applies local anesthesia around the nodule.
03
The needle is guided into the nodule under ultrasound and thermal energy is applied, while the physician talks with you periodically to monitor for hoarseness.
04
The needle is removed, the site is dressed, and a cold compress is applied.
05
You are observed for about 1 hour; if there are no complications, most patients go home the same day.
Image examples
Before and after the procedure (illustrative, not a promise of outcome)
Images from our own patients, used with written consent and with identifying information removed, showing the neck contour and ultrasound appearance before and after ablation. Results vary from person to person.
Published evidence
How much do nodules shrink?
Published studies report that benign thyroid nodules typically lose around 50–80% of their volume in the 6–12 months after radiofrequency ablation. A randomised trial comparing ablation with observation found a significant volume reduction at 6 months, while untreated nodules remained essentially unchanged [1].
The Korean Society of Thyroid Radiology practice guideline describes the procedure as an option for symptomatic benign nodules and reports a low incidence of complications when performed by trained operators [2].
These figures come from international research and are not a guarantee of outcome. The actual reduction depends on the type, size, and position of the nodule and on an individual physician assessment.
References
- Deandrea M, Sung JY, Limone P, et al. Efficacy and Safety of Radiofrequency Ablation Versus Observation for Nonfunctioning Benign Thyroid Nodules: A Randomized Controlled International Collaborative Trial. Thyroid. 2015;25(8):890–896.
- Kim JH, Baek JH, Lim HK, et al. 2017 Thyroid Radiofrequency Ablation Guideline: Korean Society of Thyroid Radiology. Korean J Radiol. 2018;19(4):632–655.
Safety, preparation and aftercare
Safety and possible complications
The procedure is performed under ultrasound guidance with the medical team monitoring you throughout. Complications are generally uncommon and may include temporary voice hoarseness, bleeding or bruising at the treated area, and short-term pain, swelling, or tightness in the neck.
Preparing for the procedure
Stop medicines and supplements that affect blood clotting for about 1 week as directed, and take no food or drink for 4 hours beforehand. Blood tests check readiness — complete blood count (CBC), coagulation profile (coagulogram), and thyroid function test (TFT) — alongside fine-needle aspiration (FNA) to confirm the nodule type.
Aftercare at home
Use cold compresses as advised, rest well, and avoid bumping the neck area at first. Seek care promptly if you notice fever, pain, swelling, redness at the site, or hoarseness, and attend the scheduled follow-up ultrasounds.
Pre-procedure assessment
Are you a candidate?
A physician assessment is required for everyone, based on the FNA result, the size and features of the nodule on ultrasound, your symptoms, and your overall health.
Generally suitable if you
- have a thyroid nodule confirmed benign by FNA
- have symptoms such as neck tightness, difficulty swallowing, or throat irritation
- have a visible neck lump and cosmetic concern
- prefer to avoid surgery, a neck scar, and general anesthesia
May not be suitable / needs further review
- nodules suspicious for or confirmed as cancer
- uncontrolled bleeding disorders
- pregnancy
- overactive nodules or other conditions decided individually
An individual assessment
The number, size, and position of the nodules relative to nerves and blood vessels, along with your thyroid function results, all affect how the procedure is planned and how many sessions may be needed.
Our medical team will explain the full range of options, including surveillance and surgery, so you can decide with complete information.
Not sure whether your nodule is suitable?
Book a consultation for an ultrasound assessment and a review of your existing results.
Book a consultationCare Pathway
01
Consultation and ultrasound to assess the nodule's size and features
02
Confirm nodule type with FNA and complete pre-procedure blood tests
03
Ultrasound-guided ablation performed by our medical team
04
Follow-up ultrasounds at 1, 3, 6 and 12 months
Who It May Suit
- A thyroid nodule confirmed benign by fine-needle aspiration (FNA)
- Symptoms such as neck tightness, difficulty swallowing, throat irritation, or a visible neck lump
- A preference to avoid surgery, scarring, and general anesthesia
Price list
ProcedureStarting Thailand price (฿)Starting Thailand price (AUD)Standard Australia price (AUD)
Thyroid procedures
Thyroid Nodule Radiofrequency Ablation (RFA)65,000A$2,826—
* Indicative prices for reference only. Final pricing depends on an individual assessment. Overseas prices are indicative market estimates for comparison only — contact our team for a personalized quote.
Traveling from overseas? See the Thailand package for this procedure.
View the Thailand packageFAQ
What is thyroid ablation (RFA)?
A special needle delivers thermal (radiofrequency) energy into a benign thyroid nodule under ultrasound guidance, causing it to gradually shrink — without surgery.
Which nodules is it for?
Nodules confirmed benign by FNA, usually in people with symptoms or cosmetic concern about a neck lump. A physician assesses each case individually.
Is it painful? Do I need general anesthesia?
Only local anesthesia is used — no general anesthesia. The physician talks with you during the procedure to monitor how you feel.
Do I need to stay in hospital?
It is generally an outpatient procedure with about 1 hour of observation; most patients go home the same day if there are no complications.
When will the nodule shrink?
It shrinks gradually over several months rather than disappearing at once, which is why follow-up ultrasounds are scheduled. Results vary by individual.
Will I need thyroid hormone afterward?
Because this approach preserves normal thyroid tissue, hormone replacement is usually not required, unlike surgical removal of the gland — but this depends on the physician's individual assessment.
Recommended reads
Learn more about thyroid nodules
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Reviewed by The YOUNIFY Clinic medical team · Last reviewed
Individual results may vary. Please consult a doctor before treatment.