“Is anesthesia used for thyroid biopsy?”

No, the procedure is called Fine Needle Aspiration Biopsy (FNA). It is a needle inserted in you bump area and whatever tissue is obtained from the procedure is stained and analyzed for the final diagnosis. No anesthesia is needed for the procedure. Thank you.

I really do not have enough information but given that I spend a lot of time working with Endocrine Surgeons and ENT surgeons who remove portions and entire thyroid glands, I would have to say that the biopsy you are referring to is a needle biopsy. I have never seen a thyroid "biopsy" in the operating room. So lets assume we are talking about a needle biopsy. Needle biopsies normally are done in the surgeon's office and requires the insertion of a fine needle into the thyroid gland, typically a nodule or mass. It should not require anesthesia.

Usually its done with local anesthesia. IV sedation is optional.

Local anesthesia