Fine needle aspiration (FNA)
Thyroid biopsy, commonly performed as fine needle aspiration (FNA), is a simple and precise procedure used to evaluate thyroid nodules.
Medically reviewed by Anna Arsenous, M.D., board-certified general surgeon · Last reviewed September 24, 2026
The thyroid is a small gland in the neck that plays an important role in regulating metabolism. Nodules on the thyroid are common, and most are benign — but evaluation provides certainty.
During the procedure, a very thin needle is used to gently collect a small sample of cells from the thyroid. This process is quick, minimally invasive, and typically well tolerated.
FNA provides valuable information that helps guide further care decisions. Most patients can return to normal activities shortly after the procedure with minimal interruption.
Typically completed in a short outpatient visit.
A very thin needle means minimal disruption.
Most patients find the procedure comfortable.
Provides the information needed for confident next steps.
Review of your imaging, thyroid function, and symptoms.
Brief positioning and preparation of the neck area.
A thin needle gently collects a small sample of cells.
Findings are explained along with recommended next steps.
Talk with Dr. Arsenous about your options.
There is typically no meaningful downtime. Most patients return to normal activities shortly after the procedure, with mild tenderness at the site that settles quickly.
Results are reviewed with you clearly, along with what they mean for monitoring or any further care.
FNA is a small procedure where precision determines whether the sample is useful. Dr. Arsenous performs it with the care and accuracy that avoids repeat testing wherever possible.
Meet Dr. Arsenous →Board-certified general surgeon · 25+ years of surgical experience · Glendale, Queens, NY
Last reviewed September 24, 2026
No — the large majority of thyroid nodules are benign. FNA is performed to provide certainty and to guide monitoring or treatment decisions.
The needle used is very thin and the procedure is quick. Most patients tolerate it well, describing brief pressure and mild tenderness afterward.
The aspiration itself takes only a few minutes, and the whole visit is typically short with no significant downtime afterward.
Not necessarily. FNA results often confirm a nodule is benign and only needs monitoring. If further treatment is advised, your options will be explained clearly.
It depends on the procedure. Minor procedures are usually done with local anesthesia, sometimes with light sedation. Laparoscopic and larger operations are usually done under general anesthesia. Dr. Arsenous will explain the plan for your specific case at your consultation.
Dr. Arsenous reviews your symptoms, medical history and any imaging, examines you, and explains whether surgery is recommended, what the options are, and what recovery involves. Bring your insurance card, a photo ID, a list of your medications and any previous imaging or reports.
Referral requirements vary by insurance plan. Some HMO and managed-care plans require a referral from your primary care provider; many other plans do not. Call (718) 821-1000 and we will check what your plan requires.
Every treatment plan is individual. Schedule a consultation and Dr. Arsenous will review your condition, options, and what recovery looks like for you.