Thyroid Nodule RFA in Seomyeon, Busan

Thyroid nodule RFA (radiofrequency ablation, 고주파절제술) is a non-surgical treatment that shrinks benign thyroid nodules using heat delivered through a thin electrode under ultrasound guidance. In Seomyeon, specialised clinics perform it as an outpatient procedure under local anesthesia, typically taking about 20–60 minutes. There is no neck scar, most people resume normal activities within a day or two, and nodules shrink gradually over months.

Independent patient guide · Medically informative, not a substitute for a doctor's advice · Last reviewed:

What is thyroid nodule RFA?

Radiofrequency ablation uses a thin needle-like electrode inserted into a nodule. High-frequency current generates heat that destroys nodule tissue, which the body then gradually absorbs, shrinking the nodule. The technique was developed and widely adopted in Korea and is now used in many countries as an alternative to surgery for benign nodules. Because the thyroid is preserved, most patients keep normal thyroid function and avoid lifelong hormone tablets.

Who is it for?

• People with benign nodules causing neck pressure, swallowing discomfort or a visible lump
• Those who want to avoid surgery and a neck scar
• Some patients with autonomously functioning (hot) nodules causing mild overactive thyroid
• Recurrent cystic nodules that refill after drainage, sometimes treated with ethanol ablation instead

RFA is generally not a first-line treatment for thyroid cancer and requires reliable benign biopsy results first. People with certain heart devices or pregnancy may need alternative options.

What happens at the clinic

1. Evaluation: ultrasound, biopsy results (usually two benign results, or one with clearly benign features), thyroid function tests and, sometimes, a voice check.
2. Preparation: blood thinners may need adjustment; light eating may be advised before the procedure.
3. Local anesthesia: numbing medicine is injected into the skin and around the thyroid.
4. Ablation: under continuous ultrasound, the electrode is moved through the nodule to treat it section by section; you remain awake and can communicate.
5. Observation: you rest with a cold pack for about an hour before going home.

Recovery and aftercare

Mild neck pain, swelling or a feeling of pressure for a few days is common and usually responds to simple painkillers. Avoid strenuous exercise for a few days. Follow-up ultrasounds, commonly at around 1, 6 and 12 months, track shrinkage. Most nodules reduce substantially in volume over the first year, with symptoms improving as they shrink. Some regrowth can occur over years and may need retreatment.

Risks and side effects

Complications are uncommon but include voice change from nerve irritation, usually temporary, bleeding or hematoma, skin burn, nodule rupture and, rarely, changes in thyroid function. An experienced operator significantly reduces these risks.

Choosing a clinic for thyroid RFA in Seomyeon

• Choose a physician with substantial thyroid RFA experience and ask how many procedures they perform.
• Confirm that biopsy criteria are followed before treatment.
• Ask about expected volume reduction for your nodule size and whether more than one session might be needed.
• Ask how voice and nerve safety are protected during the procedure.
• Check the follow-up schedule, especially if you are travelling from abroad.

For medical travellers

Allow a few days in Busan after RFA in case of swelling. Seomyeon is easy to reach from Gimhae Airport via the light rail to Sasang and Line 2.

Key facts

• Treats: benign thyroid nodules causing symptoms or cosmetic concerns; some autonomous nodules
• Prerequisite: benign biopsy results, often confirmed more than once
• Anesthesia: local anesthesia; no general anesthetic
• Procedure time: about 20–60 minutes
• Recovery: usually back to normal activity in 1–2 days
• Results: gradual volume reduction over 6–12 months
• Sessions: one is often enough; large nodules may need more

Frequently asked questions

Is thyroid RFA better than surgery?

For benign nodules, RFA avoids a scar and general anesthesia and usually preserves thyroid function. Surgery removes the nodule entirely and is preferred for cancer or very large goitres. Your doctor will compare options for your case.

Does thyroid RFA hurt?

It is done under local anesthesia, but some people feel heat or pressure radiating to the jaw, ear or chest during treatment. The doctor can pause if discomfort is significant.

How much will my nodule shrink after RFA?

Most benign nodules shrink substantially over 6 to 12 months, though the amount varies with nodule type and size. Larger nodules may need a second session.

Do I need thyroid medicine after RFA?

Usually not. Because healthy thyroid tissue is preserved, most patients keep normal thyroid function. Blood tests are checked during follow-up.

Who should not have thyroid RFA?

It is generally not used for nodules without confirmed benign biopsy results, and may not suit pregnant women or people with certain implanted electronic devices. Discuss your history with the doctor.

Related treatments in Seomyeon

• Thyroid Nodule Biopsy (FNA) in Seomyeon
• Thyroid Ultrasound in Seomyeon
• Hyperthyroidism (Graves') Treatment in Seomyeon
• Neck Lump Evaluation in Seomyeon
• Radiofrequency Ablation in Seomyeon
• All Endocrinology in Seomyeon

Medical disclaimer: Seomyeon.Clinic is an independent information directory. Content is for general education and does not replace a consultation with a licensed physician. Suitability, risks, results and costs vary by person and clinic. In an emergency in Korea, call 119.